Quantum Numbers and Electron Configurations

According to the Aufbau principle, in what order do electrons occupy orbitals?

• Highest energy first

• Lowest energy first

• Same energy level first

• Opposite spin first

How many electrons can the d sublevel hold?

• 14

• 2

• 6

• 10

What is the principal quantum number that designates the principal electron shell of the atom?

• ml

• l

• n

• ms

Which quantum number describes the shape of a given orbital?

• n

• l

• ml

• ms

Write the 4 Quantum numbers of the LAST electron added of the following element; Oxygen (O)

• 2, 1, 1, -1/2

• 2, 2, 2, -1/2

• 2, 1, 0, -1/2

• 2, 2, 1, 1/2

Name the orbitals described by the following quantum numbers: n = 3, l = 2

• 3f

• 3d

• 3p

• 3s

Give the n and l values for the following orbitals: 4p

• n = 4, l = 0

• n = 4, l = 1

• n = 4, l = 2

• n = 4, l = 3

What is the maximum number of electrons that can occupy the 3d sublevel?

• 2

• 6

• 10

• 14

According to the Aufbau principle, which orbital is filled after 4s?

• 4p

• 4d

• 4f

• 5s

What is the value of the magnetic quantum number (ml) for an electron in the 3p orbital?

• -1

• 0

• 1

• 2