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30. Which particles constitutes mostly of the mass of a single atom?
A. Electron & proton
C. Neutron & proton
C. Neutrino & proton
D. Neutron & electron​


Sagot :

Answer:

b

Explanation:

pa brainliest

correct me if I'm

wrong

Answer:

c

Explanation:

if wrong sorry

and if check thx me

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