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Atoms: NEET 2026

Medium· Bohr Model of the Hydrogen Atom (Radius of Electron in nth Orbit of Hydrogen Atom)· +4 / −1
In the first excited state of hydrogen atom, the energy of its electron is −3.4-3.4 eV. The radial distance of the electron from the hydrogen nucleus in this case is approximately: (Take 1 eV=1.6×10−191\ \text{eV}=1.6\times10^{-19} J, e=1.6×10−19e=1.6\times10^{-19} C and 14πϵ0=9×109 N m2/C2\dfrac{1}{4\pi\epsilon_0}=9\times10^{9}\ \text{N m}^2/\text{C}^2)
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