The radius of the third orbit of a hydrogen atom is 4.761 × 10⁻¹⁰ m. What is the angular momentum of an electron in the

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The radius of the third orbit of a hydrogen atom is 4.761 × 10⁻¹⁰ m. What is the angular momentum of an electron in the fifth orbit? (h = 6.626 × 10⁻³⁴ J s, r₁ for H = 5.29 × 10⁻¹¹ m)

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5.275 × 10⁻³⁴ J s Correct 3.165 × 10⁻³⁴ J s 6.33 × 10⁻³⁴ J s 2.11 × 10⁻³⁴ J s

L = nh/2π, for n=5, L = 5 × 6.626×10⁻³⁴ / (2×3.14) = 5.275×10⁻³⁴ J s.

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