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CHAPTER 2 ATOMIC STRUCTURE

Total questions: 12

Worksheet time: 7mins

Name
Class
Date
1.

Line corresponding to the shortest wavelength is obtained in a hydrogen spectrum when the electron drops from


a)

n2 to n1

b)

n3 to n1

c)

n4 to n2

d)

n4 to n1

2.

The electronic configuration with the lowest energy for 7 electrons in a 3d subshell is obtained based on


a)

Hund’s rule

b)

The Aufbau principle

c)

The Pauli’s exclusion principle

d)

The Heisenberg’s uncertainty principle

3.

The electronic configuration with the lowest energy for 7 electrons in a 3d subshell is obtained based on


a)

Hund’s rule

b)

The Aufbau principle

c)

The Pauli’s exclusion principle

d)

The Heisenberg’s uncertainty principle

4.

The maximum number of electrons occupying atomic orbitals of shell M (n=3) is

a)

8

b)

10

c)

18

d)

32

5.

What is the electron configuration for an atom with Z = 22

a)

1s22s22p63s23p63d4

b)

1s22s22p63s23p64s24p2

c)

1s22s22p63s23p63d24p2

d)

1s22s22p63s23p64s23d2

6.

How many valence electrons are present in an atom of an element with atomic number 16?

a)

2

b)

4

c)

6

d)

8

7.

How many orbitals are there in the n = 3 level of an atom?

a)

3

b)

5

c)

7

d)

9

8.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
9.
An orbital can at most hold how many electrons?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
10.

Identify the rule that is being violated

a)

Aufbau's Principle

b)

Hund's Rule

c)

Pauli's Exclusion Principle

d)

Heisenberg uncertainty principle

11.

Which rule is violated in the following orbital diagrams?

a)

Hund's Rule

b)

Aufbau Principle

c)

Pauli's Exclusion Principle

12.

Which rule is violated in the following orbital diagrams?

a)

Aufbau Principle

b)

Hund's Rule

c)

Pauli's Exclusion Principle