What subatomic particle has a positive charge and is found in the nucleus of an atom?

The subatomic particle that carries a positive charge and is located in the nucleus of an atom is the proton. Protons play a crucial role in defining the identity of an element, as the number of protons in the nucleus determines the atomic number, which in turn identifies the element on the periodic table. For example, an atom with one proton is hydrogen, while an element with six protons is carbon. The positive charge of protons also helps to attract negatively charged electrons, allowing for the formation of stable atomic structures.

Neutrons, while also found in the nucleus, do not carry any electrical charge, and thus do not contribute to the positive charge that is characteristic of protons. Electrons are negatively charged particles that orbit the nucleus and are essential for chemical bonding and electrical conductivity, but they are not found in the nucleus. Positrons, which are the antimatter counterparts of electrons, have a positive charge but typically do not exist in normal matter and are not found in the nucleus of atoms.