Question

The radius of the first Bohr orbit in the hydrogen atom is 0.5315 Å. The radius of the second Bohr orbit in the hydrogen atom is ______.

Options

• 2.126 Å

• 1.126 Å

• 0.126 Å

• 1.226 Å

Answer 1

The radius of the first Bohr orbit in the hydrogen atom is 0.5315 A. The radius of the second Bohr orbit in the hydrogen atom is 2.126 Å.

Explanation:

r_n = n² r₁

r₂ = 2² r₁ = 4r₁

r₂ = 4r₁,

= 4 x 0.5315

= 2 .126 Å