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WorksheetsAtoms 1
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What particle in an atom has a positive charge?
a)
electrons
b)
protons
c)
neutrons
d)
protons and neutrons
2.
A pure substance that cannot be broken down into a simpler substance...
a)
element
b)
ion
c)
polyatomic ion
3.
How many neutrons are in argon?
a)
18
b)
39
c)
22
d)
40
4.
Smallest particle of an element is an..
a)
atom
b)
element
c)
molecule
d)
compound
5.
How many valence electrons does the element carbon have?
a)
1
b)
2
c)
3
d)
4
6.
Which group has 2 valence electrons ?
a)
1
b)
2
c)
16
d)
17
7.
Groups in the periodic table have the same ...
a)
number of valence electrons
b)
number of energy shells
c)
number of protons
d)
same number of neutrons
8.
The element copper is made up of ...
a)
oxygen and copper atoms
b)
oxygen atoms
c)
copper atoms
d)
silver atoms
9.
Which of the following shows the chemical symbol and electrons on the outer energy level?
a)
Bohr model
b)
3D model
c)
Lewis dot diagram
d)
Elliot's diagram
10.
The maximum number of electrons that fit on the second energy level in an atom...
a)
2
b)
4
c)
6
d)
8
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