Energy of hydrogen electron in nth orbit:

Energy of hydrogen electron in nth…

Answer: -13.6/n 2 eV.

A -13.6 n2 eV
B -13.6/n eV
C -13.6/n2 eV
D +13.6/n2 eV

Correct answer: C. -13.6/n2 eV

Explanation: En = -13.6/n2 eV. Ground state (n=1): -13.6 eV. Negative means the electron is bound to the atom.

Comparison of the Thomson model and the Rutherford model of the atom: in the Thomson plum pudding model alpha particles pass almost straight through a diffuse positive sphere, while in the Rutherford model a concentrated central nucleus deflects some alpha particles through large angles, with the lower panels showing the alpha particle source and gold foil and the observed result of wide-angle scattering

The Geiger–Marsden alpha-scattering result: a few alpha particles bounce back at large angles, which rules out Thomson’s diffuse model and demands a tiny, massive, positively charged nucleus. Image: Kurzon, CC BY 3.0, via Wikimedia Commons.

Concept context

Thomson's plum-pudding model, Rutherford's nuclear model from alpha-scattering, Bohr's postulates and hydrogen spectrum, spectral series (Lyman to Pfund), Rydberg formula, and limitations of each model.

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Energy of hydrogen electron in nth orbit:

Concept context

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