In the electron configuration [Ar]4s²3d¹⁰4p⁴, which are valence electrons? A) all of the electrons after the [Ar] B) only the 4s² electrons C) only the 3d¹⁰ electrons D) only the 4p⁴ electrons E) both the 4s² and the 4p⁴ electrons

Question

Quizplus · Accepted Answer

Valence electrons are the outermost electrons that participate in chemical reactions, so in this configuration, the valence electrons are the electrons in the 4s and 4p subshells. Therefore, the valence electrons are the 4s² and the 4p⁴ electrons, which are both in the outermost shell after the noble gas configuration [Ar].

In the Electron Configuration [Ar]4s23d104p4, Which Are Valence Electrons

In the Electron Configuration [Ar]4s²3d¹⁰4p⁴, Which Are Valence Electrons