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Atomic structure, Day5, CH101

Total questions: 8

Worksheet time: 80secs

Name
Class
Date
1.

2 electrons in an orbital can be distinguished by

a)

principal quantum number

b)

orbital angular momentum quantum number

c)

Magnetic Quantum Number

d)

spin quantum number

2.

For l= 2, the value of m will be

a)

1

b)

13

c)

5

d)

7

3.

The ion which has 5 odd electrons is

a)

Fe+2

b)

Cr+3

c)

Mn+2

d)

Ti+2

4.

The ejection of electrons from the surface of a metal by light is called

a)

Zeeman effect

b)

Compton effect

c)

Photo electric effect

d)

None

5.

Which is not correct

a)

n= 3, l= 2, m= 1

b)

n= 3, l= 2, m= -2

c)

n= 3, l= 3, m= -2

d)

n= 4, l= 2, m= 1

6.

The radius of the first orbit of hydrogen atom is

a)

0.53 Å

b)

0.35Å

c)

0.053 Å

d)

0.035 Å

7.

The set of quantum no. of 21st electron in Mn is

a)

3, 2, -2, +1/2

b)

4,0,0, +1/2

c)

4, 1, -1, +1/2

d)

3,1,0, +1/2

8.

electron configuration, the term with maximum multiplicity has the lowest energy

a)

Hund's rule

b)

Pouli's Exclusion principle

c)

Aufbau principle

d)

None