If an electron in H-atom jumps from one orbit to other, its angular momentum doubles. The distance o — Atomic Structure Chemistry Question

💡 Solution & Explanation

Bohr's angular momentum is L = n * h / (2*π). Since L is directly ∝ n, doubling the angular momentum implies that the principal quantum number is doubled (n_final = 2 * n_initial). The orbit radius r is given by r = 0.529 * n^2 Angstrom. Since r is ∝ n^2, doubling n increases the distance of the electron from the nucleus by a factor of 2^2 = 4 times.