Physics
(a) What is a.m.u? Express 1 a.m.u. in MeV.
(b) Write the approximate mass of a proton, neutron and electron in a.m.u.
Radioactivity
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Answer
The mass of atomic particles is expressed in atomic mass unit (a.m.u).
1 a.m.u. = 931 MeV
The mass of a proton = 1.00727 a.m.u.
The mass of a neutron = 1.00865 a.m.u.
The mass of an electron = 0.00055 a.m.u.
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