An Electron Is Circulating Around The Nucleus Of Hydrogen Atom Of Radius 5.3×10^-11 M.Calculate The Electric Potential At This Radius And Electric Potential Energy Of The Atom In Ev.
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Given :--
r = 5.3×10^-11 m
e = 1.6×10^-19 C
now, we know that electric potential energy of H-atom is calculated by the formula ⤵️
➡️ E = k.q1.q2/r
➡️ E = -ke^2 / r
➡️ E = -9×10^9 × (1.6×10^-19)^2 / (5.3×10^-11)
➡️ E = -4.347×10^-18 J
➡️ E = -27.17 eV
> therefore, electric potential energy of H-atom is - 27.17 eV.
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