CUET Preparation Today
To remove an electron from the first orbit to infinity of hydrogen atom, the amount of energy required will be: |
-13.6 eV 13.6 eV -3.4 eV 3.4 eV |
13.6 eV |
The correct answer is Option (2) → 13.6 eV Energy Needed $(ΔE)=E_f-E_i$ $=E_∞-E_1$ $=0-(-13.6)=13.6eV$ as, At $n=∞$, the energy $E_∞=0eV$ |
