Quantum Numbers, Atomic Orbitals, and Electron Configurations

What is the principal quantum number that represents the energy level of the electron?

• n

• l

• m sub l

• m sub s

Which quantum number describes the shape of the orbital?

• l

• n

• m sub l

• m sub s

What is the maximum number of electrons that can be accommodated in an s orbital?

• 2

• 1

• 3

• 4

What is the Aufbau principle?

• Electrons in the same energy level must have the same spin values

• Electrons in the same orbital must have opposite spin values

• Electrons fill up orbitals according to their relative energies

• Electrons in the same energy level must have opposite spin values

What is the electron configuration of a neutral chlorine atom?

• 1s2 2s2 2p6 3s2 3p5

• 1s2 2s2 2p6 3s2 3p4

• 1s2 2s2 2p6 3s2 3p3

• 1s2 2s2 2p6 3s2 3p6

What is the term for atoms with unpaired electrons in their orbital diagrams?

• Paramagnetic

• Anisotropic

• Isotopic

• Diamagnetic

What does the magnetic quantum number m sub l determine?

• Energy level of the electron

• Shape of the orbital

• Specific orbital amongst a set

• Spin of the electron

What is the spin quantum number m sub s for every electron in an atom?

• 1/2 or -1/2

• 2

• 0

• 1