Question

The wave function `Phi_(n,l,m_(1))` is a methematical function whose value depends upon shperical upon spherical polar coordinates `(r,theta,phi)` of the electron and characterized by the quantum numbers, n,l and `m_(1)`. Here r is distance from nucleus, `theta` is colatitude and `phi` is azimuth. in the mathematical functions given in the table, Z is atomic number, `a_(0)` is Bohr radius.
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Q. For the given orbital in column 1, the only correct combination forany hydrogen-like species is:
A. (IV) (iv) (R)
B. (II) (ii) (P)
C. (III) (iii) (P)
D. (I) (ii) (S)

Answer 1

Correct Answer - B

Number of radial node in `2s=n-l-1`
`=2-0-1=1`