How many electons does an helogen has?

Answer 1

the number of electrons will depend on the halogen under consideration. But all halogens have 7 valence electrons

Answer 2

A halogen typically has 7 electrons in its outer shell. This includes elements such as fluorine, chlorine, bromine, iodine, and astatine. Having 7 electrons makes halogens highly reactive as they only need one more electron to achieve a stable electron configuration.