Ollie454 Ollie454
  • 03-06-2015
  • Chemistry
Answered

In which pair do the particles have approximately the same mass?
(1) proton and electron
(2) proton and neutron
(3) neutron and electron
(4) neutron and beta particle

Answer :

stephenlee0912 stephenlee0912
  • 04-06-2015
The answer is (2). Both the proton and the neutron have masses around 1amu.
Answer Link

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