An oxygen ion will have the same number of electrons as which of the following noble gases?

Question

Quizplus · Accepted Answer

Oxygen has atomic number 8, which means it normally has 8 electrons. An oxygen ion could have gained or lost electrons to form a 1+ or 2- ion, respectively. In both cases, the resulting electron configuration would match that of the noble gas neon (which has 10 electrons). Therefore, choice B (Ne) is the best answer.

An Oxygen Ion Will Have the Same Number of Electrons