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Chemistry F4 (chemical bond)

Total questions: 32

Worksheet time: 40mins

Name
Class
Date
1.
Ionic bonds are between...
a)
nonmetals and nonmetals
b)
carbon and oxygen
c)
metals and nonmentals
d)
hydrogen and chlorine
2.
Covalent bonds are between...
a)
two or more nonmetals
b)
sodium and chlorine
c)
metals and metals
d)
metals and nonmetals
3.
What kind of chemical bond forms between a metal and a nonmetal?
a)
ionic
b)
covalent
c)
fake
d)
metallic
4.
What kind of bond forms between two nonmetals?
a)
ionic 
b)
covalent
c)
metallic
d)
fake
5.

Which from following is NOT the method for elements to achieve stable octet/duplet electron arrangement?

a)

Sharing valence electron

b)

Receiving valence electron

c)

Donating valence electron

d)

Multiplying valence electron

6.

Electron arrangement of Magnesium atom is 2.8.2. Which one is the formula of Magnesium ion?

a)

Mg+

b)

Mg2+

c)

Mg+2

d)

Mg2-

e)

Mg-2

7.

Cation (positive ion) and anion (negative ion) is attracted with __________________________ to form ionic compound.

a)

van der Beek force

b)

van der Waals force

c)

electrostatic force

d)

electronegativity force

8.

Which one is the correct formula of Beryllium oxide that formed between Beryllium ion, Be2+ and oxide ion, O2- ?

a)

BeO

b)

Be2O

c)

BeO2

d)

Be2O3

9.

Covalent bond between two or more non metal elements is formed by attraction of ____________________________.

a)

van der Beek force

b)

van der Waals force

c)

electrostatic force

d)

electronegativity force

10.

Diagram shows Lewis structure of oxygen gas molecule. How many electrons involved in the formation of its double covalent bond?

a)

2 electrons

b)

4 electrons

c)

6 electrons

d)

8 electrons

11.

Hydrogen bond may exist in covalent compound between Hydrogen atom and high electronegativity elements.


Which one are the correct example of high electronegativity elements?

a)

Fe, O, N

b)

Fe, O, Ne

c)

F, O, N

d)

F, Os, Ne

12.

Which from following is example of dative bond formation?

a)

Potassium ion

b)

Aluminum ion

c)

Hydroxonium ion

d)

Chlorium ion

13.
A(n) _________ is an ion with a positive (+) charge.
a)
anion
b)
cation
c)
ion
d)
solute
14.
When an atom loses an electron, it becomes a:
a)
positive ion
b)
negative ion
c)
neutral ion
d)
neutral atom
15.
Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?
a)
There are 2 bromide ions for every magnesium ion
b)
Bromide has a 2- charge
c)
Bromide has a 2+ charge
d)
There are 2 magnesium ions to every bromide ion
16.
Elements in Group 1 lose one electron to form ions with a _________________ charge.
a)
1+
b)
2+
c)
0
d)
1-
17.
A covalent compound contains _______.
a)
Alkali metals
b)
Two metals
c)
A metal and a nonmetal
d)
Nonmetals
18.
When two atoms share electrons, a chemical bond is formed.  This type of bond is called:
a)
covalent bond
b)
ionic bond
c)
crystal bond
d)
polyatomic bond
19.
Which group of elements have full outer shells?
a)
The alkali metals
b)
The full gases
c)
The halogens
d)
The noble gases
20.
How many valence electrons do most atoms need to have a complete outer shell and be happy?
a)
1
b)
8
c)
10
d)
5
21.

Ionic compounds contain ions. The numbers of electrons, neutrons and protons in four particles, W, X, Y and Z, are shown in the figure.State which particle, W, X, Y or Z, is a negative ion.

a)

W

b)

X

c)

Y

d)

Z

22.
Why do bonds form?
a)
To fill the valence shell of electrons for the elements involved
b)
to release energy stored in the bonds
c)
because whenever you mix two chemicals, there will be a reaction
d)
because of attraction
23.
How many valence electrons does Oxygen have?
a)
8
b)
2
c)
16
d)
6
24.

How many atoms of oxygen are in one unit of Mg3(PO4)2?

a)

4

b)

6

c)

8

d)

12

25.
What is the correct formula for this molecule?
a)
Si4F
b)
SiF4
c)
SiF
d)
Si4F4
26.
Which element does this structure represent?
a)
Lithium
b)
Helium
c)
Scandium
d)
Fluorine
27.
What group does this element belong to?
a)
Group 1: Alkali metals
b)
Group 18: Noble Gases
c)
Group 2: Alkaline-Earth Metals
d)
Group 17: Halogens
28.

What will be the charge of a bromine ion?

a)

+7

b)

-7

c)

-1

d)

+1

29.
Where are the metalloids located on the periodic table?
a)
Blue
b)
Red
c)
Green
30.
What is the correct name for Mg(OH)2?
a)
Magnesium dihydroxide
b)
Magnesium Oxyhydride
c)
Magnesium Oxygen dihydride 
d)
Magnesium hydroxide
31.
What is the proper name for CaCl2?
a)
Calcium dichloride
b)
Monocalcium dichloride
c)
Calcium chloride
d)
Calcium chlorine
32.
What is the proper name for Cu2O?
a)
Copper oxide
b)
dicopper oxide
c)
copper (II) oxide
d)
copper (I) oxide

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