Which of the following particles are present in the nucleus of a helium atom?
Neutrons
Protons
Both protons & neutrons
Electrons
Select the sub-atomic particles that are present in the nucleus of an atom.
A. Electrons
B. Protons
C. Neutrons
Which sub-atomic particles of an atom are present in the nucleus of an atom?
A = Electrons
B = Protons
C = Neutrons