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Manipal MET2010ChemistryStructure of Atom

The radius of the first Bohr orbit of hydrogen atom is 0.529 Å . The radius of the third orbit of H ⁺ will be

Options

  1. A8.46 Å
  2. B0.705 Å
  3. C1.59 Å
  4. D4.79 Å

Correct answer

D. 4.79 Å

Step-by-step solution

According to Bohr model, radius of hydrogen atom (r_n )= 0.529 n^2 Z Å (where, n= number of orbit, Z= atomic number) r₃= 0.529 (3)^2 1 =4.761 Å

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