Atoms and Molecules

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7 Terms

1
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Define Atoms

smallest possible particle of an element that has the chemical properties of that element

2
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Define Isotopes

Isotopes are atoms of the same element with different number of neutrons

3
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Atoms of the same period…

have the same number of electron shells but vary in the number of valence electrons.

4
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Noble gases have…

a fully filled outermost shell that confers stability to an atom

5
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same number of electrons of an element?

similar chemical properties

6
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mass number is also?

nucleon number

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proton number

atomic number