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14 July, 22:08

What is the average mass of a proton or a neutron?

A) 1 amu

B) 2 amu

C) 3 amu

D) 4 amu

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Answers (1)
  1. 14 July, 22:59
    0
    The definition of an atomic mass unit (amu) is the mass of a single proton or neutron, so by definition, these particles have a mass of 1 amu.
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