Element with following accepted electronic configuration [Rn]5f^2 6d^1 7s^2 has atomic number equal to

MHT CET Chemistry question

Element with following accepted electronic configuration [Rn]5f 6d 7s has atomic number equal to

Answer: (B)

Atomic number = 86 + number of electrons beyond [Rn]; the accepted configuration with 6d in this range is that of

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Question ID VK-074568