Which of the following statements regarding the energy of the stationary state is true in the following one-electron system ? (A) –1.09 × 10 –18 J for second orbit of H atom. (B) +2.18 × 10 –18 J for

Question

Which of the following statements regarding the energy of the stationary state is true in the following one-electron system ?

(A) –1.09 × 10 –18 J for second orbit of H atom.
(B) +2.18 × 10 –18 J for second orbit of He + ion
(C) +8.72 × 10 –18 J for first orbit of He + ion
(D) –2.18 × 10 –18 J for third orbit of Li 2+ ion

Prashant Kotian · Accepted Answer

Correct answer: D. En = – 2.18 × 10 –18 2 Z n J/atom. For 3 rd orbit of Li +2 ion = – 2.18 × 10 –18 × 2 3 = – 2.18 × 10 –18 J.

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