WorksheetsChemical Bonds
Total questions: 26
Worksheet time: 52mins
Name
Class
Date
1.
Why do elements bond?
a)
To be friends
b)
To create a new element
c)
To become stable
d)
To get bigger
2.
What is a valence electron?
a)
The sum of neutrons and protons.
b)
The # of electrons in the last shell.
c)
A type of bond.
d)
A popular compound.
3.
Ionic bonds are between...
a)
nonmetals and nonmetals
b)
carbon and oxygen
c)
metals and nonmentals
d)
hydrogen and chlorine
4.
Covalent bonds are between...
a)
two or more nonmetals
b)
sodium and chlorine
c)
metals and metals
d)
metals and nonmetals
5.
What is the name for an ion with a positive charge?
a)
cation
b)
anion
c)
onion
d)
union
6.
What is the name for an ion with a negative charge?
a)
cation
b)
anion
c)
onion
d)
union
7.
If an atom loses two electrons what charge will it have?
a)
-2
b)
-1
c)
+1
d)
+2
8.
If an atom gains two electrons what charge will it have?
a)
-2
b)
-1
c)
+1
d)
+2
9.
The octet rules states that most elements want to have _____ valence electrons.
a)
2
b)
4
c)
6
d)
8
10.
What is the basis of a metallic bond?
a)
the attraction of neutral metal atoms.
b)
the attraction between protons and neutrons.
c)
the attraction between positive metal ions and interlocking electrons.
d)
the attraction between positive metal ions and free floating electrons.
11.
Predict the bond that will form between Be and F.
a)
Ionic
b)
Covalent
12.
Predict the bond that will form between Se and Cl.
a)
Ionic
b)
Covalent
13.
Predict the bond that will form between Sr and S.
a)
Ionic
b)
Covalent
14.
Chemical bond is ...
a)
the physical mixing of two different atoms.
b)
the force that holds two atoms together
c)
the energy used up when two atoms combined.
d)
the temperature that changes the phase of matter.
15.
How many valence electrons does Oxygen (O) have?
a)
6
b)
8
c)
15
d)
16
16.
Which of the following is ionic?
a)
NO2
b)
MgO
c)
CO
d)
CH4
17.
Which of these is covalent?
a)
NaCl
b)
Pb(NO3)2
c)
CO2
d)
AlCl3
18.
Beryllium will ____ valence electrons when forming an ionic bond.
a)
lose 4
b)
gain 4
c)
lose 2
d)
gain 2
19.
Nitrogen will ____ valence electrons when forming an ionic bond.
a)
gain 1
b)
lose 1
c)
gain 3
d)
lose 3
20.
Which of the following elements is a metal?
a)
Sodium
b)
Oxygen
c)
Hydrogen
d)
Argon
21.
NaCl is a(n)
a)
ionic compound
b)
molecular compound
22.
MgO is a(n)
a)
ionic compound
b)
molecular compound
23.
CH3OH is a(n)
a)
ionic compound
b)
molecular compound
24.
CH4 is a(n)
a)
ionic compound
b)
molecular compound
25.
PH3 is a(n)
a)
ionic compound
b)
molecular compound
26.
MgBr2 is a(n)
a)
ionic compound
b)
molecular compound
100 %
