Question

The impossible set of quantum numbers is (1) n=2, l=0, m=0, s=+\frac{1}{2}n=2,l=0,m=0,s=+ 2 1 ​ (2) n=2, l=1, m=0, s=+\frac{1}{2}n=2,l=1,m=0,s=+ 2 1 ​ (3) n=2, l=0, m=1, s=-\frac{1}{2}n=2,l=0,m=1,s=− 2 1 ​ (4) n=3, l=1, m=-1, s=-\frac{1}{2}n=3,l=1,m=−1,s=− 2 1 ​

Answer 1

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3rd

explanation

refer to the attachment above

Answer 2

Concept Introduction:-

A chemical element's atom is the tiniest conceivable particle.

Explanation:-

We have been provided a question

We need to choose from the given alternatives the correct option

The correct option is $(2) n=2, l=1, m=0, s=+\frac{1}{2}n=2,l=1,m=0,s=+ 2 1$

It is because For any value of n, value of $l$ can be $0$ to $(n-1)$, value of m can be $-1$ to $+1$ and spin can be either $+\frac{1}{2} \text { or }-\frac{1}{2}$.

So correct set of quantum numbers is $n=2, l=1, m=0, s=+\frac{1}{2}n=2,l=1,m=0,s=+ 2 1$

Final Answer:-

The correct answer is an option $n=2, l=1, m=0, s=+\frac{1}{2}n=2,l=1,m=0,s=+ 2 1$.

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