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  4. A certain orbital has n =4 and m L =-3. The number of radial nodes in this orbital is . (Round off to the Nearest Integer).

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Q. A certain orbital has $n =4$ and $m _{ L }=-3$. The number of radial nodes in this orbital is __________. (Round off to the Nearest Integer).

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Solution:

$n =4$ and $m _{\ell}=-3$

Hence, $\ell$ value must be 3 .

Now, number of radial nodes $=n-\ell-1$

$= 4 - 3 - 1 = 0$