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WorksheetsPS.4
Total questions: 8
Worksheet time: 4mins
Name
Class
Date
1.
Oxygen is in group 6. How many electrons will it have to gain to become stable.
a)
1
b)
2
c)
3
d)
4
2.
An ________ gains or loses and electron.
a)
atom
b)
ion
c)
element
3.
When Na loses an electron is becomes a ________ ion.
a)
positive
b)
negative
4.
Gaining or losing an proton changes the __________.
a)
mass
b)
element
c)
compound
5.
NaCl is a ___________ bond
a)
ionic
b)
covalent
6.
CO2 is a _______________ bond.
a)
ionic
b)
covalent
7.
When you see the coefficient in front of a number you should____________________.
a)
subtract it from the subscript
b)
add it to the subscript
c)
multiply it by the subscript
8.
True or false: The periodic table is arranged by the number of protons.
a)
True
b)
False
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