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Atomic Structure Worksheet

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Atomic Structure WS
Name _____________________________ Period _____ Date _________
Part A – Basics of the Atom
1. _____ Atom with equal protons & electrons.
a. Neutral atom
2. _____ This corresponds to the sum of protons & neutrons.
b. Ion
3. _____ Atom that has gained or lost an electron.
c. Isotope
4. _____ Atoms of same element with different masses.
d. Atomic Number
5. _____ This corresponds to the number of protons.
e. Mass Number
Part B - Isotopes
The table below contains information about several elements. In each case, enough information has been
provided for you to fill in the blanks. Assume all of the isotopes below are neutral.
Isotope
Name
Nuclear
Symbol
Atomic
Number
Mass
Number
76
185
# of
Protons
# of
Electrons
# of
Neutrons
1. Titanium-48
2.
3.
1
1
4.
5.
30
6.
82
7.
37
36
4
7
Part C – Neutral atoms, Ions, & Isotopes
The table below contains information about several elements. In each case, enough information has been
provided for you to fill in the blanks.
Protons
Neutrons
Electrons
47
63
47
15
17
15
12
12
12
12
13
12
28
32
27
Element Name
Is it an ION? If so,
what is the charge?
Nuclear Symbol
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