h = Planck’s constant (6.626 × 10–34 J • s)
v = frequency (in s–1)
c = speed of light (3.0 × 108 m/s)
A bright violet line occurs at 435.8 nm in the emission spectrum of mercury vapor. What amount of energy, in joules, must be released by an electron in a mercury atom to produce a photon of this light?
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