NEETPhysics-Atomic Physics
NEET Physics Energy Levels MCQ Question
Type: MCQ-numerical-Medium
The energy of He⁺ ion in its first excited state is. (The ground state energy for the Hydrogen atom i.6 eV) :
A
-3.4 eV
B
-54.4 eV
C
-13.6 eV
D
-27.6 eV
Correct Answer
Option B
Detailed Explanation
For He⁺, Z = 2. The energy in the first excited state (n=2) is E = -13.6 * Z² / n² = -54.4 eV.
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