Quantum Numbers

Question 1

The maximum number of electrons in a principal shell is -

Answer 1

Question 2

Answer 2

c

Question 3

Answer 3

A

Question 4

Answer 4

C

Question 5

Answer 5

Question 6

How many orbitals can be fit into the orbitals that comprise the 3rd quantum shell n=3

Answer 6

18

Question 7

The shape of the orbital is given by-

Answer 7

Azimuthal quantum numbers

Question 8

Answer 8

B

Question 9

Answer 9

B

Question 10

Answer 10

C

Question 11

Answer 11

Hund’s Rule

Question 12

Answer 12

(n + l) rule

Question 13

Answer 13

Neon

Question 14

Maximum numbers of electrons in a subshell is given by

Answer 14

2(2l + 1)

Question 15

The magnetic quantum number for valency electron of Na is -

Answer 15

Zero

Question 16

An electron has a spin quantum numbers +1/2 and magnetic quantum numbers -1. It cannot be represented in

Answer 16

s - orbital

Question 17

Answer 17

D

Question 18

The number of unpaired electrons in carbon atom is -

Answer 18

2

Question 19

Answer 19

D

Question 20

Answer 20

A

Question 21

Answer 21

A

Question 22

Answer 22

D

Question 23

Which orbital is dumb-bell shaped?

Answer 23

p orbital

Question 24

Which of the following sun-shell can accodomodate as many as 10 electrons

Answer 24

3d

Question 25

‘No two electrons in an atom have the same set of four quantum numbers’. This principle was

Answer 25

Pauli

Question 26

How many spherical nodes are present in 4s orbital in an atom-

Answer 26

3

Question 27

If elements with principal quantum numbers n > 4 is not allowed, the number of possible elements would be -

Answer 27

60

Question 28

If the values of (n + l) is not >3, then the maximum number of electron in all orbital would be -

Answer 28

12

Question 29

It is not possible to explain pauli’s exclusion principle with the help of the atom

Answer 29

H

Question 30

Which element is represented by the following electronic configuration

Answer 30

Fluorine

Question 31

Answer 31

D

Question 32

Answer 32

B

Question 33

Answer 33

D

Question 34

In Ca atoms how many electrons contain m= 0

Answer 34

10

Question 35

In Ne how many electrons contains m = -1

Answer 35

0

Question 36

The number of electrons in Na, having (n + l) = 3

Answer 36

7

Question 37

How many electrons are there in Cu+

Answer 37

6

Question 38

Which orbital represents the following sets of quantum numbers, n=3, l=0,m=0, s=+1/2

Answer 38

3s

Question 39

Answer 39

A

Question 40

The number of orbitals in n=3

Answer 40

9