Protons and neutrons are made of even smaller fundamental particles known as what?

Protons and neutrons are made of even smaller fundamental particles known as what?

• A. Leptons
• B. Quarks
• C. Bosons
• D. Gluons

Answer: (B)

The main idea here is that protons and neutrons are built from quarks, which are the fundamental constituents of matter in this context. Protons are made of two up quarks and one down quark, while neutrons are made of one up and two down quarks. These quarks are held together inside the proton or neutron by gluons, the particles that mediate the strong force. Leptons, like electrons, are a different family of fundamental particles and don’t form protons or neutrons. Bosons are force carriers (such as gluons, photons, and W/Z bosons), not the building blocks of these nucleons. So, quarks are the small particles that compose protons and neutrons.

The main idea here is that protons and neutrons are built from quarks, which are the fundamental constituents of matter in this context. Protons are made of two up quarks and one down quark, while neutrons are made of one up and two down quarks. These quarks are held together inside the proton or neutron by gluons, the particles that mediate the strong force. Leptons, like electrons, are a different family of fundamental particles and don’t form protons or neutrons. Bosons are force carriers (such as gluons, photons, and W/Z bosons), not the building blocks of these nucleons. So, quarks are the small particles that compose protons and neutrons.