Bohr atom: The Bohr radius of the hydrogen atom is 0.529 × 10^-10 m. What is the radius of the n = 2 state?

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According to the Bohr model, the radius of an orbit in the hydrogen atom is directly proportional to the square of its principal quantum number (n^2). The radius of the n = 1 state (Bohr radius) is given as 0.529 × 10^-10 m. For the n = 2 state, the radius would be (2^2) = 4 times the Bohr radius, which is 2.12 × 10^-10 m.

Bohr Atom: the Bohr Radius of the Hydrogen Atom Is