Murray Gell-Mann and George Zweig.
The nucleus of an atom is made up of two types of subatomic particles, protons and neutrons which together are sometimes called nucleons. These subatomic particles are in turn made up of smaller particles called quarks.
The two types of particles in the nucleus are called protons and neutrons.
An atom is made of smaller particles called protons, neutrons, and electrons. Protons and nuetrons are in the nucleus. The number of protons in a nucleus is the atomic number and defines the type of element the atom forms. The number of neutrons determines the isotope of an element. For example, the carbon-12 isotope has 6 protons and 6 neutrons, while the carbon-14 isotope has 6 protons and 8 neutrons. If the numbe of protons were to change, it would no longer be carbon.
To severely oversimplify it but remain accurate: quarks, leptons, intermediate vector bosons, and neutrinos. Every type of fundamental particle belongs to one of these categories, all particles in these categories are point particles (occupy zero volume).
Particles smaller than elements are called sub atomic particles. Among these are: Protons, Neutrons, Electrons, Photons, Gluons, Mesons, Bosons, Muons, Quarks, and more.
The 3 main subatomic particles found in atoms are Protons, Electrons, and Neutrons. Protons and Neutrons are called "composite particles" because they themselves are made up of smaller particles called quarks.
Because they are much smaller than an atom
Atoms themselves are made up of three kinds of smaller particles, called protons, neutrons and electrons. The protons and neutrons are in the middle of the atom.
The particles in an atom are called protons, neutrons, and electrons
The nucleus of an atom is made up of two types of subatomic particles, protons and neutrons which together are sometimes called nucleons. These subatomic particles are in turn made up of smaller particles called quarks.
The neutral particles found in the nucleus on an atom are called neutrons. Positive particles found in the nucleus are protons.
Electrons for one, and protons and neutrons are composed of quarks
in particle physics protons and neutrons fall into the category of baryons which are made up of quarks
The main constituents of the nucleus are protons and neutrons, but each of these is made up of smaller particles known as quarks.
neutrons and protons
The two types of particles in the nucleus are called protons and neutrons.
The three subatomic particles found in an atom are the Protons, Neutrons, and Electrons. But the subatomic particles found in the nucleus of an atom are the Protons, and Neutrons. The Electrons surround the nucleus and take up most of the volume.