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Ananya Shree

Class 10th
Science
2 years ago

The electronic configuration of an element T is 2, 8, 7. (а) What is the group number of T? (b) What is the period number of T? (c) How many valence electrons are there in an atom of T? (d) Is it a metal or non-metal?

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Muskan Anand

2 years ago

(a) Group-17 (b) Third period (c) 7 (d) Non-metal.

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