The radius of third bohr orbit is:
Correct answer: A. 0.529 * 3^2 Å
- A. 0.529 * 3^2 Å
- B. 0.529 * 2^2 Å
- C. 0.529 * 4^2 Å
- D. 0.529 Å
Explanation
This is the correct answer. According to Bohr's model, the radius of an electron's orbit in a hydrogen atom is given by:rn = n^2 * a0where:rn is the radius of the nth orbitn is the principal quantum number (1, 2, 3, ...)a0 is the Bohr radius (5.29 * 10^-11 m or 0.529 Å)For the third Bohr orbit (n = 3):r3 = 3^2 * 0.529 Å = 9 * 0.529 Å = 4.761 ÅTherefore, the radius of the third Bohr orbit is 0.529 * 3^2 Å.
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