WorksheetsElectron Configuration Basics
Total questions: 15
Worksheet time: 15mins
Which electron configuration belongs to Chlorine (Cl)?
1s2 2s2 2p6 3s2 3p5
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p7
How many electrons can the d sublevel hold?
8
10
2
4
What is the maximum number of electrons that an s orbital can have?
1 electron
2 electrons
3 electrons
4 electrons
How many electrons can the p sublevel hold?
8
6
2
4
What is the maximum number of electrons that an f orbital can have?
11 electrons
14 electrons
13 electrons
12 electrons
What atom matches this electron configuration?
Zinc
Copper
Nickel
Germanium
This orbital diagram represents:
C
B
N
O
Which orbital is displayed correctly?
A
B
C
D
What is incorrect about this orbital diagram?
Both arrows in the 2p box should be pointing up
There is nothing incorrect with this diagram
In the there should only be 1 orbital in the first 2p box and one in the 2nd 2p box
All the arrows should be pointing up.
Which element has electronic configuration of 1s2 2s2 2p6 3s2 3p2
C
Si
Mg
Be
After 3p orbital has been filled with electron, why the electron is added to the 4s orbital instead of 3d orbital?
difference in shape of orbital
the first ionisation is increasing across the period
the first ionisation is decreasing going down the group
due to orbital energy level
The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is
3
6
8
10
Which of the following is the correct electron configuration for the element Neon (Ne)?
1s22s22p6
1s22s22p5
1s22s22p4
1s22s22p3
What is the maximum number of electrons that can occupy the 3p sublevel?
4
6
8
10
Which principle explains why electrons fill lower energy orbitals before higher energy orbitals?
Pauli Exclusion Principle
Hund's Rule
Aufbau Principle
Heisenberg Uncertainty Principle
