Which of the following highlight the strict differences between hydrogen and alkali metals? — Hydrogen Chemistry Question

💡 Solution & Explanation

Hydrogen is a non-metal with a neutral oxide ($H_2O$) and a much higher ionization enthalpy ($1312\text{ kJ mol}^{-1}$) than alkali metals (e.g., Li is $520\text{ kJ mol}^{-1}$). These are core differences distinguishing it from Group 1.