Identify the element having general electronic configuration ns^1 from following

MHT CET 2023 Chemistry question

Identify the element having general electronic configuration from following

Answer: (D)

The general valence-shell configuration belongs to the alkali metals of group 1 (Li, Na, K, Rb, Cs, Fr). Francium () is an alkali metal, so (d) is

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Question ID VK-096386