Match the following.

Column I

Column II

A.

Photon

1.

Value is 4 for N-shell

B.

Electron

2.

Probability density

C. 

ψ2

3.

Always positive value

D.

Principle quantum number n

4.

Exhibits both momentum and wavelength

Options:

 A   B   C   D 
1.  4 4  2,3   1,3 
2.  1 2  3  4
3.  2,1  4  3  2,3
4.  4 5  3  2