Question

Pick out the incorrect
1 point
a) n=3, l=2, m=0, s=+1/2
b) n=2, l=1, m=0, s=+1/2
c) n=4, l=4, m=4, s=-1/2
d) n=5, l=4, m=0, s=-1/2​

Answer 1

Answer:

c) n=4, l=4, m=4, s=-1/2

Explanation:

when n= 4, then l should be n-1

ie; l= 3

so this option is incorrect as here l=4

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Answer 2

Concept:

The route and mobility of an electron in an atom may be described using quantum numbers.

These are the following:

Principal quantum number.

Orbital angular momentum quantum number.

Magnetic quantum number.

The electron spin quantum number.

Find:

The incorrect option.

Solution:

$l=n-1$

(a) n=3, l=2

$l=n-1\\l=3-1\\l=2$

(b)n=2, l=1

$l=2-1\\l=1$

(c)n=4, l=4

$l=4-1\\l=3$

But it is given that $l=4$. Hence, it is incorrect. Option(c) is the right answer.

(d) n=5, l=4

$l=5-1\\l=4$

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