MCQ
Which of the following statement is incorrect
- AEffective nuclear charge for electron of $3d$ and $4s$ subshell is same in $Sc$
- BFrom $s$-block to $p$-block effective nuclear charge increases in order of $0.65$
- CFor $H^-$ and $He$ value of screening constant ($\sigma$ ) for each electron is same
- ✓Effective nuclear charge depends upon value of principal quantum number
