Nuclear Physics And Radioactivity Question 150

Question: In helium nucleus, there are [RPET 1997]

Options:

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

Show Answer

Answer:

Correct Answer: C

Solution:

Helium nucleus ® $ _{2}He^{4} $ . Number of protons = Z = 2 Number of Neutrons = A ? Z = 2.