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WHICH OF THE FOLLOWING IS TRUE ABOUT THE MASSES OF THE SUBATOMIC PARTICALS OF AN ATOM?

a
ELECTRONS AND NEUTRONS ARE 1 AMU AND PROTONS ARE 1/2000 AMU.
b
ELECTRONS, PROTONS AND NEUTRONS ARE ALL 1 AMU.
c
PROTONS AND NEUTRONS ARE 1 AMU AND ELECTRONS ARE 1/2000 AMU.
d
ELECTRONS AND PROTONS ARE 1 AMU AND NEUTRONS ARE 1/2000 AMU.

Answer :

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