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The binding energy of electrons in a metal is 178kJ per mol what is the threshold frequency?
Wiki User
∙ 14y ago
use the formula E=hv where v is the threshold frequency.
however, the binding energy is in kJ per mol. convert it into J per atom.
178kJ times 1000 = 178000 J and then divide by Avogadro's number (6.022*10E23)
after that u just plug the number in equation wher h is planck's constant (6.626*10E-34 J*S) and solve for v (frequency)
this will definitely work.
Wiki User
∙ 14y ago
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