A variation on the theme of being âclosetedâ, which refers to the tendency to ignore, remove, falsify or re-explain evidence of bisexuality in history, academia, the news media and other primary sources.
The electronic configuration of Bromine is [Ar] 4s2 3d10 4p5 so there are seven valence electrons, two in the 4s orbital and 5 in the 4p orbital.
Gallium has the following electron configuration. Ga: [Ar] 4s 2 3d 10 4p 1. The 4s and 4p electrons can be lost in a chemical reaction, but not the electrons in the filled 3d subshell. Gallium therefore has three valence electrons.