Question

why is hydrogen called a rogue element​

Answer 1

Answer:

R@m R@m g❗❗ ❤☺

Hydrogen is called rogue element. Because it has some special properties which behaves differently from other elements.It has properties of ability to form halides, 1 valence electrons, some alkali properties and in gaseous state.So it is rogue element.

Answer 2

Answer:

H exhibits properties of both, Alkali metals like, 1 valence electron, ability to form halides etc.

and those of halogens like non-metal, diatomic molecule, gaseous state etc.

Hence it position is not fixed in the periodic table and called as a rogue element.