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Card 6

Front

The nucleus is always what?

Back

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Card 7

Front

The nucleus contains more than 99% of what?

Back

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Card 8

Front

The total number of protons in an atom's nucleus must be the same as what?

Back

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Card 9

Front

Electrons in atoms always orbit the nucleus and have a what?

Back

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Card 10

Front

Atoms are always what?

Back

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Card 11

Front

The nucleus of an atom of an element may contain what?

Back

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Card 12

Front

What is a molecule?

Back

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Card 13

Front

Atoms of the same element can be what?

Back

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Card 14

Front

Atoms are made up of what?

Back

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Card 15

Front

The protons and neutrons are in what?

Back

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