what is the particle that is labeled with a question mark (?) in the diagram?\nbeta particle\nquark\nisotope\…

what is the particle that is labeled with a question mark (?) in the diagram?\nbeta particle\nquark\nisotope\nalpha particle
Answer
Brief Explanations:
Protons and neutrons are made up of quarks. Beta - particles are high - energy electrons or positrons. Isotopes are atoms of the same element with different numbers of neutrons. Alpha - particles are helium nuclei. Since protons and neutrons are composed of quarks, the particle in question within the proton is a quark.
Answer:
quark