Answer : The correct option is, (B) neutron
Explanation :
As we know that the atomic number of helium atom is 2. That means it has 2 number protons, 2 number of electrons and 2 number of neutrons.
There are three subatomic particles. Protons, neutrons and electrons. The subatomic particle proton which is positively charged and neutron which is neutral are located in the center of the nucleus and the subatomic particle electrons which is negatively charged are located outside the nucleus.
In Bhor atomic of the helium atom,
The letter X represent the electrons.
The letter Y represent the neutrons.
The letter Z represent the protons.
The letter W represent the nucleus.
Hence, the correct option is, (B) neutrons.
