# Question #36a13

Jan 3, 2016

In many cases, on ionisation, hydrogen forms ${H}^{+}$ ion, which, due to a similar valency as that of alkali metals, exhibits metallic character in chemical reactions.
As you observed, Hydrogen is actually is a non-metal and is capable of forming ${H}^{-}$ ion too, which would have halogen-like behaviour. As a result, this position of Hydrogen is not completely accurate and is under debate.