Periodic Trends: Practice Problems
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1
What is the mass number of an iron atom that has 28 neutrons?
54
2
Calculate the number of neutrons in 239^Pu.
145
3
Determine the number of Protons and Neutrons in 15/7 N.
P=7, N=8, E=7
4
Determine the number of Protons and Neutrons in 33/16 S.
P=16, N=17, E=16
5
Determine the number of Protons and Neutrons in 63/29 Cu.
P=29, N=34, E=29
6
Determine the number of Protons and Neutrons in 84/38 Ba.
P=56, N=74, E=56
7
Which atom has the larger atomic radius? Na or Cs?
Cs
8
Group 1 is the ______.
Alkali metals
9
Which is the smallest atom in group 7A?
F
10
Group 2 is the ________.
Alkaline Earth Metals
11
Groups 3-10 are the _______.
Transition metals
12
Group 17 are the _______.
Halogens
13
Group 18 is the _______.
Noble gasses
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