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Atomic Structure Vocabulary (Grade 8)

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Atomic Structure Vocabulary

Instructions: Use the word bank to complete each statement about atomic structure.

Word Bank: ion; outermost; orbital; nucleus; valence; no; negative; positive; atom; electrons

1. 
The most simple unit of an element that keeps all of its characteristics properties is a(n)               .
2. 
More than half of an atom's mass is found in the atom's                     .
3. 
Protons have a                          electric charge.
4. 
Neutrons tend to have            overall measurable charge.
5. 
Electrons have a                        electrical charge.
6. 
An atom or molecule that carries a charge due to the gain or loss of an electron is called a(n)                   .
7. 
Lewis-dot diagrams can help to visually represent                      electrons in an atom.
8. 
                         move around an atom's nucleus in specific energy levels.
9. 
The region of an atom where electrons are found is called a(n)                     .
10. 
The valence electron(s) is/are the                          electron(s) in an atom.
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