wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

ELECTRONIC CONFIGURATION

Total questions: 10

Worksheet time: 6mins

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

Which of the following statements regarding electronic orbitals is/are correct?

a)

Each p-orbital can hold a maximum of six electrons.

b)

The 3p-orbitals have a higher energy level than the 3s-orbital.

c)

The three 3p-orbitals have slightly different energy levels.

d)

The 1s-orbital has the same size and shape as the 2s-orbital.

4.

What is the Aufbau principle?

a)

Within an energy level, s orbitals are the lowest energy, followed by p, d and then f. F orbitals are the highest energy for that level.

b)

The lower the principal quantum number (n) the lower the energy.

c)

All three.

d)

The Aufbau Principle states that electrons enter the lowest energy orbitals first.

5.

Identify the rule that is being violated

a)

Aufbau's Principle

b)

Hund's Rule

c)

Pauli's Exclusion Principle

d)

Heisenberg uncertainty principle

6.

What is incorrect about this orbital diagram?

a)

Both arrows in the filled 2p box should be pointing the same direction

b)

There is nothing incorrect with this diagram

c)

In the there should only be 1 arrow in the first 2p box and one in the 2nd 2p box

d)

All the arrows should be pointing the same direction.

7.

All orbitals of equal energy (degenerate orbitals) are occupied by one electron before any single orbital is occupied by a second electron.

a)

Aufbau Principle

b)

Pauli's Exclusion Principle

c)

Hund’s Rule

d)

Core Notation

8.

No two electrons in the same atom can have the same four quantum numbers.

a)

Aufbau Principle

b)

Pauli's Exclusion Principle

c)

Hund’s Rule

d)

Noble gas notation

9.

Which rule is violated in the following orbital diagrams?

a)

Hund's Rule

b)

Aufbau Principle

c)

Pauli's Exclusion Principle

10.

Which rule is violated in the following orbital diagrams?

a)

Aufbau Principle

b)

Hund's Rule

c)

Pauli's Exclusion Principle