Wavelength is the distance between two crests on a wave. A longer wavelength means the wave has less energy and lower frequency, and a shorter wavelength means the wave has a higher frequency and energy.
Waves with higher frequency and energy are shown on the left side of the diagram while lower frequency and energy waves are shown on the right side.
The energy of a photonis found using this equation. If you were to be looking for the energy in a mole, you would just have to multiply your number that you get for energy of a photon by Avogadro's number 6.02 x 10^23.
I liked how your post integrated the photos very well with words. Good Job!
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