Skip to content

Menu

Game modes

Account

← Chemistry
GK QUESTION#3154

Which set of quantum numbers is allowed for an electron in a 4f orbital?

  1. An = 4, ℓ = 3, mℓ = +1, mₛ = +½Correct answer
  2. Bn = 3, ℓ = 2, mℓ = −2, mₛ = +½
  3. Cn = 4, ℓ = 4, mℓ = −4, mₛ = −½
  4. Dn = 4, ℓ = 3, mℓ = +4, mₛ = +½
Show AnswerHide Answer

Answer

A. n = 4, ℓ = 3, mℓ = +1, mₛ = +½

Show ExplanationHide Explanation

Explanation

For a 4f electron, n = 4 and ℓ = 3. The magnetic quantum number mℓ may be any integer from −3 to +3, and mₛ is +½ or −½. Only option A satisfies all these rules. The other choices have the wrong subshell or an invalid ℓ or mℓ.

Sign in to report a question issue

Explore this topic

Under ordinary room conditions, which listed metal has the greatest tabulated density?Which listed scientist gave the element oxygen its name?Ferrum is the Latin name for ___.