Atomic Structure Worksheet

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Chemistry 1
Mrs. Dieckmann 2003
Atomic Structure Worksheet 1
Use the name examples below to help you name the atoms and ions. See if you can figure out the
name differences between cation names and anion names or use your textbook for further help.
Use the information given on table below to calculate atomic mass. If not enough information is given
on the table below then go to the periodic table to find the atomic mass. Round all atomic masses to
the nearest whole number.
Nuclear
Symbol
Atom/Ion
name
Atom/Ion
Symbol
Nitrogen
N
C-4
Os
Barium ion
Ba+2
Pb+4
Hf
I-1
In
Samarium
ion
Sm+2
Co
P-3
Selenide
ion
Se-2
Number of
Protons
Number of
Neutrons
Number of
Electrons
Atomic
Mass
Atomic
Number
Chemistry 1
Mrs. Dieckmann 2003
Atomic Structure Worksheet 2
Use the name examples below to help you name the atoms and ions. See if you can figure out the
name differences between cation names and anion names or use your textbook for further help.
Use the information given on table below to calculate atomic mass. If not enough information is given
on the table below then go to the periodic table to find the atomic mass. Round all atomic masses to
the nearest whole number.
Nuclear
Symbol
Atom/Ion
symbol
Element/
Ion
name
Lithium ion
chloride ion
Ag+1
Number
of
Protons
Number
of
Neutrons
Atomic
Mass
3
2
6
10
12
17
18
35
Silver ion
61
Tl
126
calcium
Atomic
Number
47
81
20
73
Ra+2
Number of
Electrons
82
40
73
140
samarium
ion
86
60
uranium ion
146
90
americium
150
95
88
150
62
95
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