Which of the following statement concerning concerning probability density `(Psi^(2))` and radial distribution function `(4 pir^(2) Psi)` for a s - orbit of H - like species is correct ?

Options

A. `Psi^(2)` is minimum at nucleus but `4 pi r^(2) Psi^(2)` is maximum at nucleus .
B. `Psi^(2)` is maximum at nucleus but `4 pi r^(2) Psi^(2)` is minimum at nucleus .
C. Both `Psi^(2)` and `4pir^(2) Psi^(2)` are maximum at nucleus .
D. Both `Psi^(2)` and `4pi r^(2) Psi^(2)`

Answer

B

Explanation

`Psi =(1)/(sqrt(pi)) ((1)/(a_(0)))^(3//2) = e^((-(r)/(a_(0))))`
Hence , `Psi^(2)` is maximum at r = 0 , but `4 pi r^(2) Psi^(2)` is minimum at r = 0