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Which particle in the atom has the smallest mass? electron proton neutron photon
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Which particle in the atom has the smallest mass? electron proton neutron photon

User Obi Wan
by
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2 Answers

5 votes

Answer:

electron

Step-by-step explanation:

User Blackbishop
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5 votes
Electron by far. It has a mass of only 5.45 x10^-4 amu, while a protron and neutron both have masses about 1 amu.
And a photon has no mass, but is not a part of the atom.
User Mohan Narayanaswamy
by
7.8k points
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