Which ion does NOT have a noble gas configuration in its ground state? A) Si⁴⁺ B) Al³⁺ C) Sn²⁺ D) Se^2-

Question

Quizplus · Accepted Answer

Sn^2+ does not have a noble gas configuration in its ground state. Noble gas configurations typically have full s and p orbitals in their outermost shell, corresponding to the electron configurations of the noble gases. Sn^2+ would have a configuration similar to Kr, but removing two electrons from Sn (which is in the p block) does not result in a noble gas configuration because it disrupts the stable filled shell configuration.

Which Ion Does NOT Have a Noble Gas Configuration in Its