Problem: 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?

FREE Expert Solution

E=hv (1)

where:

h = Planck’s constant (6.626 × 10–34 J • s)

v = frequency (in s–1)


λ=cv (2)

where:

c = speed of light (3.0 × 108 m/s)


E=hcλ (3)


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Problem Details

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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