Multiple Choice
What is a neutrino?
A) a particle with the same mass as an electron but with no electrical charge
B) an uncharged proton
C) a positively charged electron that combines with an ordinary electron to form an uncharged "light atom"
D) a chargeless particle with a very small mass, a small fraction of that of the electron
Correct Answer:

Verified
Correct Answer:
Verified
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