Question

the number of valence electrons present in a group of elements except first element in the group is​

Answer 1

Answer:

In general, the number of valence electrons is the same within a column and increases from left to right within a row. Group 1 elements have just one valence electron and group 18 elements have eight, except for helium, which has only two electrons total.

Explanation:

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Answer 2

Answer:

Kiran Choudhary gave correct answer