Calculate the radius of the second Bohr's orbit of electron of hydrogen atom.

Step-by-step solution

Radius of the n th Bohr's orbit of the hydrogen atom is given by aligned r_n & = 4 ₀ n^2 h^2 4 ^2 m e^2 r₂ & = 4 8.85 10⁻¹² (2)^2 (6.625 10⁻³⁴ )^2 4 ^2 9.1 10⁻³¹ (1.6 10⁻¹⁹ )^2 & = 8.85 10⁻¹² 4 (6.625 10⁻³⁴ )^2 9.1 10⁻³¹ (1.6 10⁻¹⁹ )^2 & =2.12 10⁻¹⁰ ~m & =2.12 aligned