원자핵을 구성하는 입자의 하나로 전하를 띠지 않으며 질량은 양성자와 거의 같다.
A subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
예문:
"The stability of an atom depends on the balance between protons and neutrons in its nucleus."
"Neutron stars are incredibly dense remnants of massive stars that have collapsed under their own gravity."
"Scientists use neutron scattering to study the arrangement of atoms in complex molecules."