Question

What is the minimum energy required to ionize a hydrogen atom in the n= 3 state?

Answer 1

`2.42x10^(-16)J`

Explanation:

Use the Bohr Energy Equation for `n_i = 3 -> n_f = oo`
`DeltaE_i` = -`A(1/n_f^2 - 1/n_i^2)` = `-2.18x10^(-18)J(1/oo^2 - 1/3^2)` = `-2.18x10^(-18)J(0 -0.111)J = 2.42x10^-19J`