WorksheetsChemical Bonding
Total questions: 35
Worksheet time: 35mins
Name
Class
Date
1.
If a potassium atom loses one electron, a positive ion results.
a)
TRUE
b)
FALSE
2.
A chemical bond is:
a)
Made up of electrons
b)
An attractive force that holds atoms together
c)
All of the above
d)
None of the above
3.
If an atom of nitrogen gains 3 electrons, what is its overall charge?
a)
Neutral - No charge
b)
+3
c)
-3
d)
-1
4.
Elements on the LEFT side of the periodic table will most likely form:
a)
Positive ions
b)
Negative ions
c)
Neutral Ions
d)
None of these
5.
Which of the following is true of ionic bonds?
a)
Electrons are completely transferred during bonding
b)
Electrons are shared during bonding
c)
Electrons are not involved with bonding
d)
All of the above
6.
Which of the following describes covalent bonds?
a)
Bonds form because of opposite charges
b)
Bonds form to fill outer electron shells
c)
Electrons are transferred between atoms
d)
Covalent bonds are magical
7.
Elements on the RIGHT side of the periodic table will most likely form:
a)
Negative ions
b)
Positive ions
c)
Cations
d)
Neutral ions
8.
Carbon tetrachloride contains how many atoms of chlorine?
a)
1
b)
2
c)
3
d)
4
9.
What is the correct name for this formula: AlPO4
a)
Aluminum phosphorus
b)
Aluminum phosphate
c)
Aluminum phosoxide
d)
Aluminum quatrophosphate
10.
KI contains a polyatomic ion
a)
TRUE
b)
FALSE
11.
Calcium carbonate contains a polyatomic ion
a)
TRUE
b)
FALSE
12.
Covalent bonds are formed between two metallic elements.
a)
TRUE
b)
FALSE
13.
Anion is another term for an atom that gains one or more electrons.
a)
TRUE
b)
FALSE
14.
Covalent bonds are stronger than ionic bonds.
a)
TRUE
b)
FALSE
15.
The charge of a normal atom is:
a)
Positive
b)
Neutral
c)
Negative
16.
Protons have a charge of:
a)
-1
b)
+1
c)
-2
d)
+2
17.
Electrons have a charge of:
a)
-1
b)
-2
c)
+1
d)
+2
18.
Most atoms have no net charge because they have....
a)
an equal number of charged and non-charged particles
b)
neutrons in their nuclei
c)
an equal number of electrons and protons
d)
an equal number of neutrons and protons
19.
What is the correct name for K2S?
a)
potassium sulfur
b)
potassium sulfide
c)
potassium sulfate
d)
potassium sulfite
20.
What would you name this molecule?
a)
SNa3
b)
H3O
c)
NaCl
d)
H2O
21.
What molecule is this?
a)
CO
b)
CO2
c)
C2O
d)
C2O2
22.
How many electrons are shared in a triple bond?
a)
6
b)
3
c)
6 pairs
d)
5
23.
How many are shared in a double bond?
a)
2
b)
4 pairs
c)
6
d)
4
24.
How many are shared in a single bond?
a)
2 pairs
b)
4
c)
2
d)
1
25.
When a metal reacts with a nonmental, it makes
a)
an ionic compound
b)
a covalent compound
c)
a low melting point
d)
water molecules
26.
Ionic or covalent?
Na F
Na F
a)
Ionic
b)
Covalent
27.
Ionic or covalent?
N H
N H
a)
Ionic
b)
Covalent
28.
If a you saw the following, K+; what does it tell you about the the ion.
a)
it has lost one electron
b)
it has lost one proton
c)
it has lost two electrons
d)
it is a negative ion
29.
The joining of atoms to form new substances is called?
a)
proton bonding
b)
mixtures
c)
compounds
d)
chemical bonding
30.
How many electrons are needed to fill the outer orbit of most atoms?
a)
2
b)
4
c)
6
d)
8
31.
This type of model shows only the valence electrons of an element?
a)
Bohr diagram
b)
Childers model
c)
Lewis-dot diagram
d)
What is a valence electron again?
32.
In a covalent bond, one or more electrons are?
a)
shared
b)
lost
c)
gained
d)
transferred
33.
The correct Lewis-dot structure for Iodine ( I ) would have how many valence electrons?
a)
2
b)
4
c)
7
d)
8
34.
What group of elements satisfies the octet rule without forming compounds?
a)
halogen
b)
noble gas
c)
alkali metal
d)
alkaline-earth metal
35.
A nonpolar covalent bond is unlikely when two atoms of different elements join because the atoms are likely to differ in
a)
density.
b)
state of matter.
c)
electronegativity.
d)
polarity.
100 %
