the minimum frequency of radiation that will produce a photoelectric effect
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Do you have a picture of a diagram?
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They are different elements. However, most of their chemical properties are similar, because of the similar numbers of electrons in their valence shells. Their physical properties differ because of the mass contained in the atoms of <span>each element.</span>
The answer is 39.948 g/mol so rounded to the nearest ones would be 40.00 g/mol.
