Science, asked by chaudharykhushboo82, 5 months ago

value of l/n for element having atomic no.57is0.4

Answers

Answered by Braɪnlyємρєяσя

0

Explanation:

La (lanthanum) having atomic number 57 is a member of d-block elements as the last valence electron enters d orbital. It has two outermost shells incomplete. La belongs to 5d series.

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