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Name: _______________________________
The Atoms Family
Atomic Math Challenge
Date: _______ Class: _____ Seat #: _____
Atomic number is the number
of _____________ .
8
O
Oxygen
Atomic mass is the AVERAGE
number of _______ + _______
of all the isotopes of an atom .
15.999
needs to be changed to
8
O
15.999
30
Zinc
65.39
Mass number is the number
of _______ + _______ of a
specific isotope of an atom .
3
Li
6.941
Atomic # =
Atomic # =
Atomic # =
Atomic Mass =
Atomic Mass =
Atomic Mass =
Mass Number =
Mass Number =
Mass Number =
# of Protons =
# of Protons =
# of Protons =
# of Neutrons =
# of Neutrons =
# of Neutrons =
# of Electrons =
# of Electrons =
# of Electrons =
14
Silicon
28.086
5
B
10.81
35
Bromine
79.904
Atomic # =
Atomic # =
Atomic # =
Atomic Mass =
Atomic Mass =
Atomic Mass =
Mass Number =
Mass Number =
Mass Number =
# of Protons =
# of Protons =
# of Protons =
# of Neutrons =
# of Neutrons =
# of Neutrons =
# of Electrons =
# of Electrons =
# of Electrons =
16
S
32.06
53
Iodine
126.905
25
Mn
54.938
Atomic # =
Atomic # =
Atomic # =
Atomic Mass =
Atomic Mass =
Atomic Mass =
Mass Number =
Mass Number =
Mass Number =
# of Protons =
# of Protons =
# of Protons =
# of Neutrons =
# of Neutrons =
# of Neutrons =
# of Electrons =
# of Electrons =
# of Electrons =
12
Mg
24.305
18
Argon
39.948
19
K
39.098
Atomic # =
Atomic # =
Atomic # =
Atomic Mass =
Atomic Mass =
Atomic Mass =
Mass Number =
Mass Number =
Mass Number =
# of Protons =
# of Protons =
# of Protons =
# of Neutrons =
# of Neutrons =
# of Neutrons =
# of Electrons =
# of Electrons =
# of Electrons =
79
Gold
196.967
1
H
1.008
9
Fluorine
18.998
Atomic # =
Atomic # =
Atomic # =
Atomic Mass =
Atomic Mass =
Atomic Mass =
Mass Number =
Mass Number =
Mass Number =
# of Protons =
# of Protons =
# of Protons =
# of Neutrons =
# of Neutrons =
# of Neutrons =
# of Electrons =
# of Electrons =
# of Electrons =
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