Calculate the radius of the first Bohr orbit for the hydrogen atom
Strategy: The radius of the first Bohr orbit for the `H`atom can be obtained directly from Eq.

Explanation

Assume `n = 1`, take `Z = 1`, and insert the values of the constants to obtain
`r_(1) = ((1)^(2)(6.63xx10^(-27) ergs^(2)))/(4(3.14)^(2)(9.11xx10^(-28)g)(1)(4.8xx10^(-10)esu)^(2))`
`= 0.529 xx 10^(-8)cm = 0.529Å = 52.9 pm`