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WorksheetsCovalent bonds
Total questions: 17
Worksheet time: 18mins
Name
Class
Date
1.
Is O2 a compound or a molecule?
a)
Compound
b)
Molecule
c)
Both
2.
The chemical bond that forms when electrons are shared is called:
a)
Ionic
b)
hydrogen
c)
covalent
3.
Which part of the atom is responsible for chemical bonding?
a)
Core Electrons
b)
Valence Electrons
c)
Protons
d)
Neutrons
4.
The octet rule means that all valence shells want to have the number......
a)
1
b)
9
c)
8
d)
16
5.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
None of these
6.
How many electrons does potassium K contain? (click to see image)
a)
19
b)
39
c)
20
d)
40
7.
Where are the nonmetals located on the periodic table?
a)
Blue
b)
Red
c)
Green
8.
Which of these is not a real bond in chemistry?
a)
James
b)
Ionic
c)
Covalent
9.
Two or more atoms held together by a chemical bond is called what?
a)
A molecule
b)
A molecure
10.
Where are metals located on the periodic table?
a)
Blue
b)
Green
c)
Red
11.
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.
12.
Same repel, opposites
a)
avoid
b)
attract
c)
push
d)
pull
13.
Why do elements bond?
a)
To be friends
b)
To create a new element
c)
To become stable
14.
Atoms are most stable when their outer shell is complete.
a)
true
b)
false
15.
How many electrons should Boron have around its Lewis dot model?
a)
1
b)
2
c)
3
d)
4
16.
How many dots would the electron dot diagram of Helium have?
a)
1
b)
2
c)
8
d)
0
17.
What is the atomic mass of Neon?
a)
10
b)
20.18
c)
10.18
d)
30.18
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