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Card 6

Front

What is the relative mass and relative charge of a neutron?

Back

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Card 7

Front

When and how did Mendeleev create the periodic table?

Back

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Card 8

Front

Why did Mendeleev leave gaps?

Back

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Card 9

Front

How did Mendeleev predict the properties of some elements?

Back

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Card 10

Front

What are isotopes?

Back

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Card 11

Front

What is the relative atomic mass of an atom?

Back

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Card 12

Front

How many electrons can each electron shell hold?

Back

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Card 13

Front

What is the electron configuration?

Back

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Card 14

Front

What do elements in the same group have in common?

Back

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Card 15

Front

What does the number of shells show?

Back

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