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2311 N 2412 Mg

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Q1 Complete the table:

Element

Electronic

configuration

Type of

element

Electronic configuration

of the ion.

2311 Na

2412 Mg

27 13Al

147N

16 8O

 3517Cl

Q2) Complete:

  1.  Metals contain --- , --- or --- electrons in their outer most energy levels, so they -------- electrons to complete their outer energy levels with ----- electrons.
  2.  Non-metals contain ------, -------- or -------- electrons in their outer most energy levels, so they -------- electrons to complete their outer most energy level with ------ electrons.

Q3) Write the scientific term:

  1. An atom lost an electron or more during the chemical reactions.

                                                 ----------------

  2. An atom gained an electron or more during the chemical reactions.                                          ----------------                                                           

  3. Elements which are good conductors of heat& electricity.

                                                     ----------------        

  4. Elements which are not malleable or ductile.

                                                     ----------------

                                                    

                            

                

Q1 Show by drawing the formation of ionic bond in the following:

  1.  Sodium Chloride molecule(NaCl)

11Na          

                   

17Cl                  

    -------------------------------------------------------------------------

 2. Magnesium Oxide (MgO)

  12 Mg

 

               8O   

                                                                         

Q2) Complete:

  1.  The ionic bond arises due to the ----------------force between the positive ions of the ------------ & the negative ions of the ----------.
  2.  Metals lose electrons & change into ---------------- ions, while non-metals   gain electrons & change into -------------------ions.

Q3) Write the scientific term:

  1.  A strong electrical attraction force take place between the positive metal ions the negative non-metal ions forming an ionic compound molecule.                                                        --------------------------

Q1 Show by drawing the formation of covalent bond in the following:

  1.  Hydrogen molecule:

                                  

 11H       +        11H            

  1.  Oxygen molecule:

                                           

 168O    +    168O                 

  1.  Nitrogen molecule:

                       

14 7N    +   14 7N   

 

Q2 Write the scientific term:

1. The bond between 2 non- metals.                       -------------------

2.  The covalent bond in which each atom shares the other with one electron.                                                                -------------------

3. The covalent bond in which each atom shares the other with three electrons.                                                             --------------------

  1.  The bond between the oxygen molecules.

                                                                           ---------------------

   5. The elements which their outer electron shells are completely filled with electrons.                                                    ----------------------     

Question (1):

Choose the correct answer:

  1.  In the triple covalent bond, each atom shares with --------.

(One electron – two electrons – three electrons – four electrons)

  1.  The bond in sodium chloride molecule is ------- bond.

(Single covalent – double covalent- ionic – triple covalent)

  1.  All the following are properties of metals except --------.

(they are good conductors of electricity –they are bad conductors of heat – they contain 1,2 or 3 electrons in outermost shell)

Question (2)

Complete the following table:

Element

Its electronic configuration

Its type

Its ion
  1.  12Mg

        2  8  2

        K   L  M

Metal

 Mg +2
  1.  19K

 

  1.  17 Cl

  1.  8O

Question (3)

Write the scientific term:

  1.  An atom gained one electron or more during the chemical reactions.                                (---------------)
  2.  An atom lost one electron or more during the chemical reactions.                                 (---------------)
  3.  A bond that is formed between sodium atom and chlorine atom to form sodium chloride compound.     (---------------)
  4.  A bond that is resulted from the sharing of each atom with two electrons.                             (---------------)

Question (4)

Write down the electronic configuration of the atoms of the following elements, then answer:

  1.  The type of each atom (metal – non metal )
  2.   The type of each ion (negative – positive)

The elements:

  1.  Aluminum   13 Al
  2.   Sulphur      16S

                                                                                

                   

Q1:Define The valency:

-------------------------------------------------------------------------------------------------------------------------------------------------------------.

Q2 Complete the table:

The Element

Electronic Configuration

The Valency (Giving reasons)

 11 Na

     -------

Because it has ------ electron in the outer shell.

 12 Mg

  17 Cl

   8 O

  20 Ca

  13 Al

   7 N

   3 Li

   19 K

   1 H

   16 S

Q.3 Complete: 

The atoms lose, gain or shares electrons to complete their outer energy shells with ----------   electrons.

                       Q1:Write the chemical formula of the following:

The Compound

Chemical formula

1. Sodium Chloride

2. Sodium nitrate

3. Sodium Carbonate

4. Sodium Hydroxide

5. Calcium Chloride

6. Calcium Nitrate

7. Calcium Carbonate.

8. Calcium Sulphate.

9. Calcium Hydroxide

10. Copper Carbonate

11. Aluminum Carbonate.

12. Aluminum Sulphate.

13. Sodium Oxide

14. Carbon Dioxide

15. Hydrogen Chloride.

Define: The atomic group:  

-----------------------------------------------------------------------------.

Q2:Write the scientific term:

1. A set of atoms joined together, behave like one atom only, having a special valency & cannot be existed individually.  (--------------)                        

 2.  A formula represents the number& types of atoms in a molecule. 

                                                                                  (---------------)                                                    

3.  The molecule which is composed of 3 atoms of 2 elements, one atom of oxygen& 2 atoms of hydrogen.                 (----------------)                                                

 Q3 Write the name of the following:

    Al2 (SO4)3                          --------------------------------

    CaCO3                        -------------------------------

    Na2O                         -------------------------------

     MgCO3                                -------------------------------

     AgCl                         -------------------------------

Question (1):

Complete the following statements:

  1.  The number of known elements up till now is --------- elements.
  2.  All metals are --------- except --------- which is a liquid.
  3.  -------- are bad conductors of heat and electricity.
  4.  ---------- is the only liquid metal element, while -------- is the only liquid non-metal element.
  5.   Ionic bond arises between --------- and --------- elements.
  6.  During the formation of MgO molecule,--------- atom loses --------- electrons which are gained by ---------- atom.

Question (2)

Choose the correct answer:

  1.  All these elements are metal solid elements except -----------.

(sodium – magnesium – mercury – aluminum)

  1.  When an atom of an element loses one electron or more, it changes into ------------.

(negative ion – positive ion – neutral atom – no correct answer)

  1.  All the following elements can form positive ions except --------.

(sodium 11Na – magnesium 12Mg – chlorine 17Cl – aluminum 13Al)

Question(3)

Write the scientific term:

  1.  The only non-metal that exists in a liquid state.   (--------------)
  2.  Elements have luster, good conductors of heat and electricity.

                                                            (-------------)

  1.  A bond resulting from reaction between a positive ion and a negative ion.                                                         (-------------)
  2.  Elements whose outermost shells are completely filled with 8 electrons.                                                  (-------------)

 Question (4):

Write the electronic configuration for each of the following atoms:

(7N  -  10Ne   - 19K  -  16S)

  1.  The type of each atom (metal – non metal – nobel gas).

--------------------------------------------------------------------------------------------------------------

  1.  The type of ion for each of them (positive ion – negative ion – no ions).

--------------------------------------------------------------------------------------------------------------

  

                      

        

        Q1 Compare between:

Type

Acids

Alkalis

Definition

---------------------

-------------------

Properties

--------------------

-------------------

Examples

---------------------

-------------------

     Q2 Define:

1. The oxides: --------------------------------------------------------------------------------------------.

* Examples: ---------------------------------------------------------------------------------------------.

2.  The salts:

-----------------------------------------------------------------------------------------------------.

Examples: -------------------------------------------.

   Q3 Compare between:

Salts which dissolve in water

Salts which don't dissolve in water

                                                                                                                                                                                                                        

Q1 Define:

1. The chemical reaction: -----------------------------------------------------------------------------------------2 .The chemical equation: ----------------------------------------------------------------------------------------.

Q2 If you know that:

The mass of Mg= 24, the oxygen mass O = 16

a) Calculate the sum of the masses of the reactants& the products in the following chemical equation:

2 Mg          +      O2                                   2 MgO  

  b) State the law of constant ratios:

------------------------------------------------------------------------------------------------------------.

Q3: Compare between:

 

Points

Exothermic reactions

Endothermic reactions

Definition

Examples

Complete the following chemical equations:

  1.  Direct combination reactions:
  2.  Element        + Element

     C                  +       O2                Δ       

  1.  Compound    + Compound:  

      NH3               +  HCl        

  1.  Thermal decomposition reactions:

 A) CuSO4         Δ

   

 B) 2 NaNO3             Δ

  1.  Double Substitution reactions:

  1.  Neutralization reaction:

NaOH   +   HCl  Δ

  1.  Salt solution + Salt solution:

  NaCl      +   AgNO3       

Question (1):

A)-Complete the following statements:

  1.  The magnesium atom combines with oxygen atom to form --------- molecule.
  2.  The chemical equation should be -------- such that the total mass of the reactants entering a reaction ------- the total mass of the products resulting from this reaction.
  3.  When a glass rod wet with ammonia solution is put at the mouth of a test tube containing concentrated hydrochloric acid, -------fumes of -------- are formed.
  4.  Nitrogen oxides are acidic gases that affect the --------- system.
  5.  Combination of carbon with oxygen gives --------- gas and this reaction is considered ---------- reaction.

B)-Complete the following equations:

1.  C + O2 

2.  NH3 + HCl

3. 2NO + O2   

Question (2)

Choose the correct answer:

  1.  Which of the following is considered a balanced chemical equation?

(Mg + O2       MgO – Mg + O2      2MgO –  2Mg + O2      MgO – 2Mg  + O2      2MgO)

  1.  The bright magnesium ribbon changes into white powder of ------- when it burns in air.

(magnesium nitrite – magnesium hydroxide – magnesium dioxide – magnesium oxide )

  1.  Ammonia combines with HCl producing -------- of ammonium chloride

(white ppt – brown fumes – white fumes – brown ppt)

Question(3)

Write the scientific term:

  1.  The total amount of reactants masses is equal to the total amount of products masses.                             (-----------------)
  2.  Poisonous gases that affect on both eye and the nervous system.

                                                  (-----------------)

  1.  Breaking the reactants bonds and forming new ones among the products.                                         (-----------------)
  2.   A set of chemical formulae and symbols expressing the reactants, the products and the reaction conditions.    (----------------)

Question (4):

Write the chemical equation representing the following reactions:

  1.  Burning of magnesium with oxygen to produce magnesium oxide.

--------------------------------------------------------.

  1.  Burning of carbon in the presence of oxygen to produce carbon dioxide.

--------------------------------------------------------.

  1.  Burning of ammonia gas with hydrochloric acid to produce ammonium chloride.

-------------------------------------------------------.

Question (5)

Calculate the masses of reactants and products in the following reactions:

Knowing that the mass of (S= 32 gm, O = 16 gm)

 S  + O2             SO2

            

Q1 Complete:

  1.  Forces in universe follow four main division which are:  

---------------------, ----------------- , ----------------- &    ---------------------.

2.    Objects move when a proper ---------- is acted upon them.

  1.  Force is an -------- attempts to change the object phase from being -------- to -------- .
  2.  Force attempts to change the motion ----------.

  1.  Newton's general attraction law = ----------------

 

  1.  The exerted work to lift an object --------- when the object mass becomes larger.

  1.  An object weight = --------- x -------------
  2.  The electric motor works on changing ----------------------.

  1.  The electric generators works on changing from ---------------.

10. The uses of the Electromagnet are in ------------- & ---------.

11. Like charges -----------------from each other, while unlike charges.

Q2 Define:

  1.   Force: ---------------------------------------------------------------------------------------------------------------.
  2.  Weight: -------------------------------------------------------------------------------------------------------------.

Q3 Write the scientific term:

1. Earth's gravity force to objects.                     (---------------)                                                                                       

2. The device which is made of an isolated copper wire coiling around a bar of soft iron& works as a magnet when an electric current passes through it.

                                                             (---------------)                                                                             

3. The energy that the atom stores inside its nucleus. (---------------)         

4. The force which is used to get radioactive elements& radiations used in medicine& scientific researches.                          (----------------)                                                      

  1.  The force which is used in producing electric energy from the nuclear energy& in the military purposes.                        (----------------)

                                                      

Question (1):

A)-Complete the following statements:

  1.  The attraction force (weight) = -------- x ----------.
  2.  The measuring unit of object’s mass is ---------, while the unit of acceleration is -----------.
  3.  The attraction force increases when the mass of the body------.
  4.  The book on a table remains static because there is no -------- acting on it.
  5.  The measuring unit of force is -----------.

Question (2)

Choose the correct answer:

  1.  Universal forces in nature are -------------.

(attraction forces – electromagnetic forces – nuclear forces –all the previous)

  1.  The apple falls down due to the effect of -------------.

(electromagnetic forces – attraction forces – nuclear forces)

  1.  The attraction force is measured in ---------.

  (kilogram – coulomb – Newton – m/s2)

Question (3)

Choose from column (B) what suits in column (A):

(A)

(B)
  1.  Newton
  1.  Gravity acceleration.
  1.  m/s2
  1.  Mass
  1.  Kg
  1.  Force
  1.  m
  1.  Distance

Question (4):

Problems:

  1.  If you known that the gravity acceleration is 9.8m/s2,calculate the weight (attraction force) of the following:
  2.  50 kg mass ball.
  3.   100 kg mass boy.

  1.  Calculate the mass of an object if the attraction force equals 60 Newton and the gravity acceleration equals 9.8 m/s2.

Q1: Write the scientific term:

1. The forces which are generated when objects move in circular paths.                                                     

                                                          (------------------)

2. The property of an object to resist the change of its phase from rest to motion unless an external force acted upon it.       (-------------------)

3. The resistance forces originated between the surface of the object in motion& the medium touching it.                       (-------------------)             

Q2 Give reasons:

  1.  A football player is rushed forward& falls if he is tripped during running.

-------------------------------------------------------------.

  1.  Lubricating& oiling mechanical machines.

--------------------------------------------------------------.

  1.  The Earth revolves around the sun without falling in it.  

--------------------------------------------------------------.

  1.  Policemen advise drivers to use the safety belts.  

---------------------------------------------------------------.

  1.  Bus passengers are rushed back once the vehicle starts.  

---------------------------------------------------------------.

     

                      

  

Wave motion

Q1. A)-Write scientific term :

  1.  The change in an object position or direction with the time passes relative

    to another object, known as a frame of reference.    

                                                     (-------------------)                                         

2. The motion in which the object’s position is changed relative to a fixed  

   point from time to time.                         (-------------------)                                    3. The wave which is produced by the vibration of a medium particles.

                                                        (-------------------)

4. The motion which is regularly repeated in equal periods of time                                                                

                                                        (-------------------)

5. The waves which are accompanied by Electric.  (-------------------)                                                

6. The velocity of the body in which its displacements occurred every second

 is equal.                                                                      (-------------------)                                    

  1.  The distance in which an object moves away from its original position at

     any moment.                                      (-------------------)   

Question(2): Compare between :  

Mechanical waves

Electromagnetic waves
  1.  -----------------

------------------

1.--------------------------------------------------

2.------------------------------------------

2.-----------------------------------------------

3. --------------------------------------------

 

3.-----------------------------------------------

Examples-----------------------------------------------------------------

------------------------------------------------------------------------------------------

Question three

Give examples for:

  1.  A circular motion              -------------------------------
  2.  Transitional motion            -------------------------------
  3.  Vibrating motion               --------------------------------
  4.  Wave motion                   --------------------------------
  5.  Mechanical wave                -------------------------------
  6.  Electromagnetic wave          -------------------------------

Question four

Write the uses of each:

Ultraviolet ray

-------------------------------------.

X-ray

--------------------------------------------.

Infrared rays

  --------------------------------------.

Gamma ray

   ----------------------------------------.

Visible light

  ---------------------------------------.

Mechanical wave

-----------------------------------.

Question five

A)-Mention the type of motion in each:

 -------------  ------------------   -------------------

Q1 Write the scientific term:

1. The distance covered by light in a year.  ---------------

2. A group of millions of stars.              ---------------

3. It consists of the sun, 8 planets revolving around it.

                                                 ---------------                                                                          

4. The satellite of earth, which is affected by its gravity.  

                                                 ---------------

5. The celestial bodies which are formed of stones& rocks.    

                                              ---------------

6. The celestial bodies which form luminous arrows in the sky.  

                                                ---------------

   7. Celestial bodies which penetrate the atmosphere& some of them reaches the earth's surface.          ---------------

   8. Celestial bodies which consist of head& tail and composed of rocks, ice& solidified gases.                 -------------

9. The most famous comet which was seen in 1986. --------

10. The most important instrument that are used in identifying the Celestial bodies.                -------------                             

Q2 Give reasons:

  1.  The presence of hydrogen gas in a solidified state in outer planets group.

--------------------------------------------------------------------------------------------------------------------------------------------------------------.

  1.  The outer planets have low densities.

-----------------------------------------------------------------------------------------------------------------------------------------------------------------.

    

                                                 

     

Q3 Compare between:

Points

Inner planets

Outer planets
  1.  Size

----------------

----------------

-----------------

-----------------
  1.  Distance from the sun

----------------

----------------

-----------------

-----------------
  1.  Density

----------------

----------------

-----------------

-----------------
  1.  Characters

----------------

----------------

------------------

------------------
  1.  Names

----------------

----------------

------------------

------------------

     

Q4 Complete:

1. The --------- are celestial bodies that emit heat& light.

2. ------------- are the biggest unit of the universe while the galaxy

 That our system belongs to is called ------------------.

3. -----------------Planet has the biggest number of moons, while Mars has ------------------------- moons only.

4. The ------ belt separates the inner from the outer planets.

5. The head of the comet is a mixture of ---------, ----------, ----& water molecules while the ---------------consists of a gaseous cloud.

6. The scientist ---------------------------- proved that there is a force of gravity between 2 objects in space.

7. The two types of telescopes are ----------& --------------.

 

Unit 3

Q1 Complete:

  1.  The ------------------------------ occupies the centre of the solar system.
  2.  The distance between earth& sun is about-------------
  3.  The earth is the ------------- planet regarding the distance from the sun, while it is the ----------------------------- order regarding to volume.
  4.  The suitable atmospheric pressure is about --------------------.
  5.  The salty water represents --------------% , while the fresh water is about-------------------%
  6.  The layers of the earth are ----------, --------& ---------------------  

Q2 Describe the shape of the earth at the poles& equator:

----------------------------------------------------------------------------------------------------------------------

-----------------------------------------------------------.

Q3. Write the function of:

  1.  Carbon dioxide gas:

---------------------------------------------------------------------------------------------------------------------------.

  1.  Ozone layer.

-----------------------------------------------------------------------------------------------------------------------.

  1.  Oxygen.

------------------------------------------------------------------------------------------------------------------------.

  1.  Nitrogen gas.

-----------------------------------------------------------------------------------------------------------------------.

  1.  Hydrosphere.

-------------------------------------------------------------------------------------------------------------------------.

Q4 Write the scientific term:

  1.  The inner layer of the earth.            -------------------
  2.  The outer layer of the earth.            -------------------
  3.  The middle layer of the earth that lies between crust& core.

                                             -------------------

Q5 Compare between:

Outer core

Inner core

-----------------

-----------------

-----------------

-----------------

-----------------

-----------------

-----------------

-------------------

-------------------

-------------------

-------------------

-------------------

-------------------

-------------------

                                                   Unit 3

Q1 Classify the following rocks:

The rock

                               Type

Granite

-------------------------------------------------------------------------------------------------

Basalt

--------------------------------------------------------------------------------------------------

Sandstone

-------------------------------------------------------------------------------------------------

Limestone

--------------------------------------------------------------------------------------------------

Marble

--------------------------------------------------------------------------------------------------

Q2 Write the scientific term:  

   1. A natural solid material exists in the earth's crust& is formed of a group of minerals.                                    -----------------

   2. A thin, fragmented& loosened layer consists of a mixture of mineral salts, water, air& decayed organic substances.   -----------------

  3. The type of rocks which are formed from the molten matter underneath the earth's crust.                        ----------------

  4. The type of igneous rocks which are formed when magma reaches earth's surface in the form of a flow of lava.      ----------------

 5. The type of rocks which are formed when other rocks are exposed to high pressure& temperature.                          ----------------

 6. The mineral which is formed of a mixture of calcium& iron silicate.                                                                                    

                                                         ----------------

Q3. Complete:

  1.  The molten matter underneath the earth surface is called --------------------, while when they reach the earth surface they form ------------.   
  2.  ------------& ------------are examples of igneous rocks.
  3.  Granite consists of 3 main minerals which are ----------, -------------&--------------.
  4.  Basalt consists of ------------& ---------------.
  5.  The sedimentary rocks are formed of 3 processes which are:

-----------------------------------------------------------------------------------------------------------------.

  1.  Lime stone reacts with hydrochloric acid producing ---------------------------.

 

Q4.

(A) Compare between:

Points

Granite

Basalt

Type

----------------

----------------------

Colour

----------------

---------------------

Minerals forming them

----------------

----------------

---------------------

----------------------

B)Compare between:

Points

Sandstone

Limestone

Colour

-----------------

------------------

Texture

-----------------

------------------

Structure

------------------

------------------

                                                                                                                  Good Luck.

36




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