Question

The radius of the innermost electron orbit of a hydrogen atom is 5.3 ×10 −11 m. What are the radii of the n = 2 and n =3 orbits?

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Answer 1

Explanation:

The radius of the innermost orbit of a hydrogen atom, r1 = 5.3 × 10−11 m. Hence, the radii of an electron for n = 2 and n = 3 orbits are 2.12 × 10−10 m and 4.77 × 10−10 m respectively.

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