Chemistry, asked by lhsangchangsanhmar14, 7 hours ago

how many periods and groups are thre in modern periods

Answers

Answered by suselacheekati

3

Answer:

Modern Periodic Table has 18 groups and 7 periods.

Answered by XxItzCuteAkshayxX

1

Answer:

Modern Periodic Table has 18 groups and 7 periods.

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