Which of the following properties represent the resemblance of hydrogen with halogens? — Hydrogen Chemistry Question

💡 Solution & Explanation

Hydrogen resembles halogens by needing one electron to achieve the $1s^2$ configuration of Helium. It forms hydride ions ($H^-$) and exists as a diatomic molecule ($H_2$). However, its electronegativity ($2.1$) is notably lower than that of halogens.