Question

On the basis of electronic configuration how will you identify the first element in a period?

Answer 1

Answer:

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Explanation:

On the basis of electronic configuration, how will you identify the first and the last element of a period? The element is said to be in the first element of a period if the number of valence electron is 1. If the number of valence electron is 8, the element is said to be the last element of a period.

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