Question

10. Which of these particles is Fermion?
(a) Free electron in metal
(b) gas molecule
(c) photon
(d) phonon​

Answer 1

Explanation:

A baryon, such as the proton or neutron, contains three fermionic quarks and thus it is a fermion. The nucleus of a carbon-13 atom contains six protons and seven neutrons and is therefore a fermion.

☺️☺️