Name: 
 

Atoms and Molecules - Pre-test



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Which is the smallest?
a.
speck of dust
c.
molecule of water
b.
plant cell
d.
atom
 

 2. 

All elements are made up of _______.
a.
atoms
c.
mixtures
b.
compounds
d.
solutions
 

 3. 

Atoms bond together through sharing or transfer of __________.
a.
protons
c.
neutrons
b.
electrons
d.
nuclei
 

 4. 

An atom has a nucleus, which contains _______.
a.
electrons and neutrons
c.
protons and neutrons
b.
electrons and protons
d.
electrons and particles
 

 5. 

_______ have a negative charge
a.
protons
c.
electrons
b.
neutrons
d.
nuclei
 



 
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