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How can i know from which …

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How can i know from which periods or group an element belong to?

Posted by Sujeet Gupta 6 years, 8 months ago

CBSE > Class 10 > Science

3 answers

Rakesh Naik 6 years, 8 months ago

See the video on this app u will easily understand.thankyou

Nikita Singh 6 years, 8 months ago

By doing electronic configuration of elements

Arsh Sidhu 6 years, 8 months ago

No of shells tell us the period no and no of valence electrons tells us the group no

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