Quantum Numbers

Q. Given below are the quantum numbers for $4$ electrons.

A. $\text{n}=3,l=2,{\text{m}}_1=1,{\text{m}}_{\text{s}}=+1/2$

B. $\text{n}=4,l=1,{\text{m}}_1=0,{\text{m}}_{\text{s}}=+1/2$

C. $\text{n}=4,l=2,{\text{m}}_1=-2,{\text{m}}_{\text{s}}=-1/2$

D. $\text{n}=3,l=1,{\text{m}}_1=-1,{\text{m}}_{\text{s}}=+1/2$

The correct order of increasing energy is :

1. D $<$ A $<$ B $<$ C
2. D $<$ B $<$ A $<$ C
3. B $<$ D $<$ A $<$ C
4. B $<$ D $<$ C $<$ A

Q.

What is the maximum capacity of a shell of quantum number n?

1. n/2

2. 2n²

3. 4n

4. n³

Q.

Can 2nd shell accommodate 7 electrons?

1. No

2. Yes

Q.

Which of the following denotes 5p?

1. n = 4, l = 3

2. n = 5, l = 1

3. n = 5, l = 1

4. n = 4, l = 1

Q.

Principle quantum number directly reflects on

1. Bond length

2. Bond angle

3. Atomic size

4. Oxidation state

Q.

Magnetic quantum number signifies

1. angular momentum

2. size of the atom

3. shape of the subshells

4. possible number of orientations of sub-shells

Q.

Out of these, which cannot be maximum capacity of a shell?

1. 8

2. 18

3. 24

4. 32

Q.

How many sub-shells are possible for n = 4?

1. 3

2. 5

3. 2

4. 4

Q.

For a given value of n, the total number of possible l values is

1. n

2. n-1

3. 2n-2

4. n²

Q.

Which of the following arrangement cannot be possible?

1. n = 4, l = 2

2. n = 5, l = 5

3. n = 3, l = 2

4. n = 1, l = 0