WorksheetsAufbau's Principle, Hund's Rule & Pauli's Exclusion Principle -
Total questions: 8
Worksheet time: 4mins
According to the Aufbau's principle, where should the first electron go in the orbital diagram?
3s
2s
1s
2p
What is the main idea behind Hund's rule?
Electrons prefer to be paired rather than unpaired
Electrons should be added to the highest energy level first
Electrons should be added one at a time with parallel spins
Electrons should be added in a random order
Why do electrons prefer to be unpaired rather than paired?
Paired electrons have lower energy
Paired electrons have lower stability
Paired electrons repel each other
Paired electrons have higher energy
Where should the seventh electron go according to Hund's rule?
2p
3s
2s
1s
What is the main idea behind Pauli's exclusion principle?
No two electrons can have the same set of four quantum numbers
Electrons prefer to be unpaired rather than paired
Electrons should be added to the lowest energy level first
Electrons should be added one at a time with parallel spins
Which quantum number describes the size and energy level of the orbitals?
Magnetic quantum number
Electron spin
Principal quantum number
Angular momentum quantum number
What does the magnetic quantum number describe?
Electron spin
Shape of the orbital
Size and energy level of the orbital
Orientation of the orbital
What does the electron spin quantum number describe?
Direction of the electron spin
Size and energy level of the orbital
Orientation of the orbital
Shape of the orbital
