Following are the few characteristics of fermions.

• Fermions are those particles that have an odd half-integer spin like 1/2, 3/2 and so on. 

• Leptons, quarks, neutrons and protons are a few examples of fermions. 

• The total number of fermions is conserved and they obey Pauli’s exclusion principle which means that only one fermion will occupy a particular space at a given time. So, we can say that fermions are solitary.

• They contain an odd number of nucleons.

• The properties of fermions are described by Fermi-Dirac Statistics.