Multiple choice

With increasing principle quantum number, the energy diffrence betwen adjacent energy levels in H - atoms ?

  1. Decreases

  2. Increases

  3. Remain constant

  4. Decreses for low value of Z and increases for higher value of Z .
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A Correct answer
Explanation

This option is correct because ,

energy is given by , En = -13.6 / n2 eV / atom .

En -En-1 = -13.6 [ (1 / n2 ) - (1 / (n-1)2 ) ] .

This diffrence is decreases with the increase in value of ' n ' .

Hence, this option is correct .

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