How many group and periods are there in modern periodic table

asked Jun 13, 2021 58.5k views

2 votes

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6 votes

Answer:

there is 7 periods and 18 groups

Step-by-step explanation:

Shane Courtrille answered Jun 16, 2021

7.6k points

2 votes

In the periodic table, there are 7 periods and 18 groups.

Danb answered Jun 20, 2021

by Danb

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