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Quantum Numbers

The principal...

Question

The principal quantum number 'n' can take the value:

A

0

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B

1

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C

\frac{1}{2}

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D

all of these

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Solution

The correct option is B 1
The principal quantum number n is an integer starts from $1$ . It cannot be rational or zero.
$n = 1, 2, 3, 4, . . . ., n$ energy levels

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