The helium isotope \(^3_2He\)
A
has three pro tons and two neutrons
B
has two protons and one neutron
C
has two protons and three neutrons
D
has one proton and two neutrons
E
cannot exist because it has the same mass number as tritium
Verified Correct Answer: B.
Physical Principles & Numerical Solution
Based on nuclear physics, the correct answer is B: \(^3_2\)He has two protons and one neutron.
Source: Myschool Past Questions Archive (Record #42682)