The elements has configuration of [ Kr ] ,4d^75s^2. The number of electrons present in its tripositive ion would be _____

MHT CET Chemistry question

The elements has configuration of . The number of electrons present in its tripositive ion would be

Answer: (B)

The neutral atom has 36 + 7 + 2 = 45 electrons (Rh); its tripositive ion has 45 - 3 = 42 electrons,

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Question ID VK-074713