What is the charge of quarks and charge of leptons mean

The charge of quarks and leptons refers to the electric charge carried by these subatomic particles. Quarks are the building blocks of protons and neutrons and have fractional electric charges of +2/3 or -1/3. Leptons, on the other hand, include particles such as electrons, muons, and neutrinos, which have integral electric charges of -1 or 0. The charge of these particles is a fundamental property that determines how they interact with other charged particles and electromagnetic fields.