In helium nucleus, there are. | PHYSICS - ATOMIC MASSES AND COMPOSITION OF NUCLEUS | SolveeIt | Solveeit

Today, August 19

Question

In helium nucleus, there are.

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

2 protons and 2 neutrons

Explanation

Solution

Helium nucleus → $2 ⥂ He^{4}$ .

Number of protons = Z = 2

Number of Neutrons = A – Z = 2.