A subatomic particle with integer spin is a ______.

A subatomic particle with integer spin is a ______.

• A. Fermion
• B. Lepton
• C. Boson
• D. Quark

Answer: (C)

Integer-spin particles belong to the boson family. The spin-statistics connection tells us that particles with integer spin obey Bose-Einstein statistics and have symmetric wavefunctions, which lets many identical particles occupy the same quantum state. That’s what defines a boson. In contrast, particles with half-integer spin are fermions (like leptons and quarks) and obey the Pauli exclusion principle, so they cannot share the same state. So, when a subatomic particle has integer spin, it is classified as a boson.

Integer-spin particles belong to the boson family. The spin-statistics connection tells us that particles with integer spin obey Bose-Einstein statistics and have symmetric wavefunctions, which lets many identical particles occupy the same quantum state. That’s what defines a boson. In contrast, particles with half-integer spin are fermions (like leptons and quarks) and obey the Pauli exclusion principle, so they cannot share the same state. So, when a subatomic particle has integer spin, it is classified as a boson.