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AP EAMCET · Chemistry · Structure of Atom

The ratio of ground state energy of \(\mathrm{Li}^{2+}, \mathrm{He}^{+}, \mathrm{H}\) is

  1. A \(3: 2: 1\)
  2. B \(1: 2: 3\)
  3. C \(9: 4: 1\)
  4. D \(1: 4: 9\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(9: 4: 1\)

Step-by-step Solution

Detailed explanation

Ground state energy of hydrogen like atom is \(E=-13.6 \times \frac{Z^2}{n^2}\) All are in ground state i.e \(\mathrm{n}=1\) \(\therefore E \propto Z^2\) \(\therefore \quad\) The ratio of ground state energy of…