MC 1.35 Electron Orbitals Quiz

What is the Aufbau principle?

• Electrons fill the lowest energy orbitals first

• An orbital can have a maximum of two electrons

• Electrons will occupy orbitals singly before filling them in pairs

• Electrons have spin

What is the Pauli exclusion principle?

• Electrons fill the lowest energy orbitals first

• An orbital can have a maximum of two electrons

• Electrons will occupy orbitals singly before filling them in pairs

• Electrons have spin

What is Hund's rule?

• Electrons fill the lowest energy orbitals first

• An orbital can have a maximum of two electrons

• Electrons will occupy orbitals singly before filling them in pairs

• Electrons have spin

According to the Pauli exclusion principle, how many electrons can an orbital have?

• 0

• 1

• 2

• 3

What is the maximum number of electrons that can occupy an orbital?

• 0

• 1

• 2

• 3

According to Hund's rule, how are electrons distributed in orbitals of equal energy?

• They occupy them singly before filling them in pairs

• They fill them in pairs before occupying them singly

• They fill them randomly

• None of the above

What is the correct electron configuration for magnesium?

• 1s2 2s2 2p6 3s2

• 1s2 2s2 2p6 3s2 3p6

• 1s2 2s2 2p6 3s2 3p6 4s2

• 1s2 2s2 2p6 3s2 3p6 4s2 3d6

Tags

NGSS.HS-PS1-1

What is the correct electron configuration for chlorine?

• 1s2 2s2 2p6 3s2 3p5

• 1s2 2s2 2p6 3s2 3p6

• 1s2 2s2 2p6 3s2 3p6 4s2

• 1s2 2s2 2p6 3s2 3p6 4s2 3d6

Tags

NGSS.HS-PS1-1

What does each box in an orbital diagram represent?

• The number of protons

• The number of neutrons

• A sub-orbital

• The number of energy levels

Which subshell is represented by the rectangular shape in the orbital diagram?

• 1s

• 2s

• 2p

• 3s