Science, asked by Anshparashar494, 1 year ago

how to check group and period

Answers

Answered by kpopgirl63

3

Answer:

the horizontal lines shows the periods and the vertical lines show the groups

Answered by eesha35

1

Answer:

the number of valence electrons tell u the group number,period ,the no of a shell tell the period of an element .....

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