which of the following statement (s) is (are) correct ?

Options

A. the eletronic configation of Cr ois [Ar]3d `4s^(-1)` (Atomic number of Cr=24)
B. The magnetirc quantum number may have nagative values .
C. In silver atom ,23 electrons ,have a spin of one type and 24 of opposite type (atomic number of Ag=47 ).
D. `d_(z^(2))` orbital has total 6 lobes .2 large lobes along Z-axis , while 4 very small lobes in Xy plane . Along X and Y axis

Answer

a,b,c

Explanation

N/a