1.

If the energy of a photon is 1.32 × 10^-18 J, what is its wavelength in nm?

2.

The energy of an electron in the hydrogen atom is determined by what?

2 answers

1. E = hc/wavelength. Solve for wavelength in meters and convert to nm.

2. By the orbit/shell/energy level (take your pick) in which it is located.
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