Question

Choose the correct option.

In the spectrum of the hydrogen atom which transition will yield the longest wavelength?

Options

• n = 2 to n = 1

• n = 5 to n = 4

• n = 7 to n = 6

• n = 8 to n = 7

Answer 1

n = 8 to n = 7

Explanation:

The eighth energy level, E₈ = – 0.2125

The seventh energy level, E₇ = – 0.277

E₈ – E₇ = 0.06