The valence electrons in 12Mg are in what orbital?
1 answer
The electronic configuration of Magnesium (Mg) is 1s² 2s² 2p⁶ 3s². Since valence electrons are the electrons present in the outermost shell, the valence electrons in Magnesium are in the 3s orbital. Therefore, in 12Mg, the valence electrons are also in the 3s orbital.