Question

set of quantum numbers which describe the unique quantum state of an electron. It can be defined as,
The quantum number associated with the angular momentum of an atomic electron.


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Answer 1

Answer:

You have values for three our of the four quantum numbers that we use to describe the location and the spin of an electron inside an atom.

the principal quantum number,

n

the angular momentum quantum number,

l

the magnetic quantum number,

ml .

This means that in order to describe the electrons defined by these two incomplete quantum number sets, you must mention

the energy shell in which the electron is located because you know the value of

n

the energy subshell in which you can find the electron because you know the value of

l

the orientation of the orbital in which the electron resides because you know the value of

ml

For the first set, you have

n=3,l=0,ml=0

This set describes an electron that

is located in the third energy shell because

n=3

is located in the

s

subshell because

l=0

is located in the

s

orbital because

ml=0

So for this first electron, you have the third energy shell, the

3s

subshell, and the

3s

orbital. You don't know the value of the spin quantum number,

ms

, so you can't specify the spin of the electron.

For the second set, you have

n=2,l=1,ml=1

This time, the set describes an electron that

is located in the second energy shell because

n=2

is located in the

p

subshell because

l=1

is located in one of the three

p

orbitals because

ml=1

So for this electron, you have the second energy shell, the

2p

subshell, and one of the three

2p

orbitals, let's say

2px

. Once again, you don't have the value of

ms

, so you can't say anything about the spin of the electron.

Explanation:

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