Name the neutral subatomic particle.

• J.J. Thomson was the first scientist who discovered that atoms were divisible.
• The atom can be further divided into three subatomic particles that are electron (negative charge), proton (positive charge), and neutron (no charge).
• The neutral subatomic particle is known as a neutron because it has no charge on it.
• The mass of neutrons is ($1.67\times {10}^{-27}\mathrm{kg}$).