More cards in this set

Card 16

Front

What did the gaps of tthe 1869 periodic table do?

Back

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Card 17

Front

What are periods?

Back

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Card 18

Front

Explain the properties of periods?

Back

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Card 19

Front

What are groups?

Back

Preview of the front of card 19

Card 20

Front

Explain the properties of groups?

Back

Preview of the front of card 20