Question

The radius of the third Bohr orbit for hydrogen atom is ____________.

विकल्प

• 158.7 pm

• 476.1 pm

• 52.9 pm

• 212 pm

Answer 1

The radius of the third Bohr orbit for hydrogen atom is 476.1 pm.

Explanation:

r_n = ${\displaystyle 52.9\times \frac{{\text{n}}^2}{\text{Z}}}$ pm

For hydrogen; n = 3 and Z = 1

∴ Radius of third Bohr orbit = 52.9 × (3)² = 476.1 pm