1. Tardigrade
  2. Question
  3. Chemistry
  4. A hydrogen atom in an excited state is ionised by the absorption of radiation with a photon energy of 1 eV. What is the minimum value of n for excited state of the atom :-

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Q. A hydrogen atom in an excited state is ionised by the absorption of radiation with a photon energy of $1 \,eV$. What is the minimum value of $n$ for excited state of the atom :-

Structure of Atom

Solution:

In H-atom ionisation energy is less than $1 \,eV$ is for $n =4\left( E _{4}=-0.85 \,eV \right)$ on wards. therefore minimum value of $n =4$