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Bohr's Model and electronic configuration

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.
What element is represented in this Bohr Model?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
2.
What element is represented in this Bohr Model?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
3.
What element is represented in this Bohr Model?
a)
Beryllium
b)
Boron
c)
Barium
d)
Bromine
4.

If a photon hits an atom, the electron will ___________ the energy. It is promoted from a _____ energy level to a ______ energy level.

a)

absorb; lower; higher

b)

emit; lower; higher

c)

absorb; higher; lower

d)

emit; higher; lower

5.

How did Bohr's model address the problem of electrons spiraling into the nucleus?

a)

Electrons emit energy continuously

b)

Electrons absorb energy continuously

c)

Electrons occupy fixed energy levels

d)

Electrons move in elliptical orbits

6.

How does Bohr's model explain the stability of atoms with filled energy levels?

a)

Atoms with filled energy levels are unstable.

b)

Atoms with filled energy levels are highly reactive.

c)

Atoms with filled energy levels are stable and less reactive.

d)

Filled energy levels have no effect on atom stability.

7.
FIND THE ELECTRONIC CONFIGURATION OF Cl (At no = 17)
a)
2,8,7
b)
2,8,8
c)
2,8,6
d)
2,8
8.
C (6)
a)
2,5
b)
2,6
c)
2,4
d)
2,7
9.
Mg (12)
a)
2,8,2
b)
2,8,6
c)
2,6
d)
2,7
10.
F (9)
a)
2,5
b)
2,6
c)
2,7
d)
2,8
11.

Haw many maximum electrons can be present in the "M" shell of an atom?

a)

2

b)

8

c)

18

d)

32

12.

If Kand L shells of an atom are full then how many electrons would the atom have ?

a)

8

b)

10

c)

6

d)

2

13.

Which of the following is the electronic Configuration of Sodium

a)

2,8

b)

2,8,1

c)

2,1,8

d)

8,1,2

14.
The electron configuration of an atom is 1s22s22p6.  The number of valence electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
15.

What is the electronic configuration for Phosphorus atom ?

a)

1s22s22p63s23p3

b)

1s22s22p63s23p5

c)

1s22s22p3

d)

1s22s22p63s2