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WorksheetsMore Atoms
Total questions: 12
Worksheet time: 12mins
Name
Class
Date
1.
If an atom does not have a charge, it will have _____ electrons as its number of protons.
a)
the same # of
b)
a greater # of
a fewer # of
a fewer # of
c)
a greater # of
2.
A valence electron or electrons exist in the ______ energy level.
a)
Farthest in
b)
Middle
c)
Furthest out
3.
Noble gases have _____ valence electrons shells.
a)
empty
b)
partially full
c)
full
4.
How many valence electrons does magnesium have?
a)
1
b)
2
c)
12
d)
24
5.
How many valence electrons does sodium have?
a)
1
b)
2
c)
3
d)
4
6.
A anion will be a ____ ion.
a)
negative
b)
positive
c)
neutral
d)
ficticious
7.
A cation is a ____ ion.
a)
negative
b)
positive
c)
neutral
d)
ficticious
8.
Nitrogen has ____ valence electrons and wants ____ more to fill its outer shell.
a)
3;5
b)
5;3
c)
5;5
d)
3;3
9.
What is the formula for aluminum (Al +3) fluoride(F-)?
a)
AlF
b)
Al2F3
c)
AlF3
d)
Al3F2
10.
Negative ions form when atoms _________ valence electrons.
a)
lose
b)
gain
c)
share
11.
Element or compound?
H2O
H2O
a)
element
b)
compound
12.
How many atoms are there TOTAL in:
H2SO4
H2SO4
a)
6
b)
5
c)
7
d)
3
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