Electron Configuration

Which of the following sets of quantum numbers in an atom are unacceptable?

• (1, 0, ½, ½)

• (1, 0, 0, -1/2)

• (1, 0, 0, ½)

• (2, 0, 0, ½)

Which of the following ground-state configuration listed below is incorrect?

• 1s² 2s² 2p⁵

• 1s² 2s² 2p⁴ 3s² 3p³

• 1s² 2s² 2p⁶ 4¹

• 1s² 2s¹

  The atomic number of an element is 17. Is this element diamagnetic or paramagnetic?

• Paramagnetic

• Diamagnetic

How many unpaired electron(s) is/are present in the element Sc?

• 1

• 2

• 3

• 4

Which of the following is the correct ground-state noble gas configuration of Au?

• [Xe] 6s¹ 4f¹⁴5d¹⁰

• [Ne] 6s¹ 4f¹⁴5d¹⁰

• [Ar] 6s¹ 4f¹⁴5d¹⁰

• [Kr] 6s¹ 4f¹⁴5d¹⁰

Determine if P is diamagnetic or paramagnetic.

• Diamagnetic

• Paramagnetic

It is the principle that says no two electrons should have the same 4 quantum numbers.

• Aufbau

• Pauli Exclusion

• Hund's Rule

• Shielding Effect

"As neutrons are added to the nucleus to build up atoms, electrons are added to the orbitals"- Aufbau principle.

• True

• False

Which of the following satisfies the Hund's rule?

• 
• 
• 

Which of the following statements is true?

• You can add 3 electrons in an orbital.

• To complete a d orbital, you need to have 14 electrons.

• You may add 2 similar spins in 1 orbital.

• You may place a single electron anywhere in a p orbital.