In which of these nuclei does the proton have the greatest mass?

A. Hydrogen B. Iron C. Lead D. Uranium Explain. or:A. Hydrogen B. Iron C. Lead D. Uranium Explain.or:Your question makes no sense. Mass of a proton is

A. Hydrogen
B. Iron
C. Lead
D. Uranium

Explain.

or:A. Hydrogen B. Iron C. Lead D. Uranium Explain.

or:Your question makes no sense. Mass of a proton is constant. Whatever element has the most protons has the most mass. That would be uranium, 92 protons.

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