Statement (A): To attain stability one electron from 4s orbital is shifted to 3d-orbital in Chromium & copper
Statement (B): The electronic configuration of Zr is [Kr] 5s2 4d2
Statement (C): The atomic numbers of Cr & Cu are 24, 29
a) All the statments A, B and C are correct b) All the statments A, B and C are incorrect
c) A, B are correct and C is incorrect
d) A, B are incorrect and C is correct.
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a)All the statements A B and C are correct
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