Radius of the first excited state of Helium ion is given as: a₀ =… | JEE Main 2025 Chemistry PYQ | Jeeify

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MCQEasyJEE Main 2025 · 22 January, Shift 1Bohr Model & Hydrogen Spectrum

Radius of the first excited state of Helium ion is given as: $a_0$ = radius of first stationary state of hydrogen atom.

A
$r = \frac{a_0}{2}$
B
$r = \frac{a_0}{4}$
C
$r = 4a_0$
D
$r = 2a_0$

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