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WorksheetsAtoms and The Periodic Table
Total questions: 22
Worksheet time: 14mins
Name
Class
Date
1.
What is the smallest unit of matter called
a)
elements
b)
atoms
c)
compounds
d)
cells
2.
What is the atomic mass of Neon?
a)
10
b)
20.18
c)
10.18
d)
20.18
3.
How many protons are in Beryllium?
a)
4
b)
9
c)
5
d)
2
4.
What is the atomic mass of Copper?
a)
63
b)
29
c)
34
d)
92
5.
How many neutrons are in a Gold atom?
a)
79
b)
196
c)
118
d)
275
6.
How many electrons does a Copper atom have?
a)
63
b)
29
c)
92
d)
34
7.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
8.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
9.
How many electrons do atoms need to be stable?
a)
1
b)
2
c)
6
d)
8
10.
Which of the following has a full valence shell?
a)
Oxygen
b)
Neon
c)
Barium
d)
Carbon
11.
The majority of an atom's mass exists where?
a)
In the nucleus
b)
In the electron cloud
c)
In the space between the nucleus and the electrons
d)
In the neutrons
12.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
13.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
14.
How many electrons should Lithium have around its Lewis dot model?
a)
1
b)
2
c)
3
d)
4
15.
How many electrons should Beryllium have around its Lewis dot model?
a)
1
b)
2
c)
3
d)
4
16.
How many electrons should Nitrogen have around its Lewis dot model?
a)
1
b)
3
c)
4
d)
5
17.
How many electrons should Carbon have around its Lewis dot model?
a)
1
b)
3
c)
4
d)
5
18.
How many electrons should Neon have around its Lewis dot model?
a)
5
b)
6
c)
7
d)
8
19.
How many electrons should Sodium have around its Lewis dot model?
a)
1
b)
2
c)
3
d)
4
20.
Traveling across a period the atomic radii ______________.
a)
Increases
b)
Decreases
c)
Stays the same
21.
Traveling down a family the atomic radii ______________.
a)
Increases
b)
Decreases
c)
Stays the same
22.
How many electrons does potassium K contain? (click to see image)
a)
19
b)
39
c)
20
d)
40
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