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Science Atom Structure and PT Quiz

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11 Terms

1
atom
The building block of matter.
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2
proton
A particle with a positive charge
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3
neutron
A particle with a neutral charge
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4
electron
A particle with an negative charge
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5
element
A specific type of atom
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6
ion
An atom that has an electric charge
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7
Periodic Table
All of the elements organized by their atomic number
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8
atomic number
The number of protons in an element
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9
atomic mass
The number of protons and neutrons in an atom
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10

valence electrons

The number of electrons on the outermost shell of an atom

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11

isotope

Different forms of an element that vary in neutron number.

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