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As per your syllabus, the radius of the first Bohr orbit of hydrogen (n = 1) — the Bohr radius a₀ — is approximately which value?
A52.9 pm
B5.29 pm
C529 nm
D529 pm
Answer & Solution
Correct answer: A. 52.9 pm
As per your syllabus, eqn 2.12, r_n = n² a₀ with a₀ = 52.9 pm. For n = 1, r = 52.9 pm.
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