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How to find group number and period number

Fathima Aliya 19th Aug, 2026

Answer (1)

Nischal Kothapalli 23rd Aug, 2026

Hey there,

To find the group number and period number of an element from its electronic configuration:

1. Find the Period

The period number = highest principal quantum number (n) in the electronic configuration.

Thanks

Nischal

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