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jolli1 [7]
3 years ago
8

What minimum frequency of light is required to ionize potassium?The energy required to ionize potassium is 419kJ/mol?

Chemistry
1 answer:
Oxana [17]3 years ago
7 0
We find the work function per atom e = E/N = 419000/6.023E23 = hf = photon energy; solve for the frequency, using N = 6.023E23 atoms per mole and Planck's h = 6.63E-34 J.s:

f = E/Nh = 419000/(6.023E23*6.63E-34) = 1.04927E+15 = 1.05E15 cps IS THE ANSWER, HOPE IT HELPED :)
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