In helium nucleus, there are � – McqOptions

MCQOPTIONS

1.	In helium nucleus, there are [RPET 1997]
A.	2 protons and 2 electrons
B.	2 neutrons, 2 protons and 2 electrons
C.	2 protons and 2 neutrons
D.	2 positrons and 2 protons
Answer» D. 2 positrons and 2 protons

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