More cards in this set

Card 6

Front

What is the atomic number of an atom?

Back

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Card 7

Front

What is the mass number of an atom?

Back

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Card 8

Front

How many electrons does 1st, 2nd and 3rd shell of an atom hold?

Back

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Card 9

Front

How are elements arranged in the same group in the periodic table?

Back

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Card 10

Front

What do the elements in each period (row) have in common?

Back

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Card 11

Front

What else is a shell known as?

Back

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