1.

Which of the following electronic configuration belong to transition elements ?

Answer»

KL `3s^2p^6d^5, 4s^1`
KL `3s^2p^6d^10, 4s^2p^3`
KL `3s^2p^6d^10, 4s^24p`
KLM `4s^2p^6d^10, 5s^25p^1`

ANSWER :A


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