Select the incorrect statement(s)/order (s):

Options

A. d-orbital can accommodate 10 electrons
B. `underset(2s^(2)2p^(6)3s^(1))(Na) overset(I.E_(1)) underset(2s^(2)2p^(6))(Na^(+)) overset(I.E_(2)) to underset(2s^(2)2p^(5))(Na^(2+)) overset(I.E_(3)) to underset(2s^(2)2p^(4)) (Na^(3+))`, order of successive I.E. is `I.E_(1) lt I.E_(2) lt gtI.E_(3)`
C. Number of unpiared electrons in `Co^(2+)` cationgt Number of unpaired electrons in `Co^(3+)` cation
D. First ionisation energy of Pt is greater than that of Pd

Answer

A, B, C