The subatomic particle that carries a negative electrical charge is the electron. It is one of the three primary components of an atom, alongside the positively charged proton and the neutral neutron. What subatomic particle has a negative charge? The subatomic particle with a negative charge is the electron.The number of protons in an atom is also known as its atomic number. The subatomic particle responsible for the majority of an atom's mass is the neutron and proton. The electron (e− , or β− in nuclear reactions) is a subatomic particle whose electric charge is negative one elementary charge. It is an elementary particle contained in the matter that makes up the universe. Because like charges repel each other and opposite charges attract, Thomson concluded that the particles had a net negative charge; these particles are now called electrons. The electron carries a negative electrical charge, equal in magnitude but opposite in sign to the proton’s charge, designated as −1. These particles also differ significantly in mass. Electron, lightest stable subatomic particle known. It carries a negative charge of 1.6 x 10^-19 coulomb, which is considered the basic unit of electric charge. The electron was discovered in 1897 by the English physicist J.J. Thomson during investigations of cathode rays. The electron is a fundamental subatomic particle characterized by its negative electric charge. It belongs to the family of elementary particles known as leptons and plays a crucial role in the composition and behavior of atoms. It is crucial to remember the charges of the three main subatomic particles: protons are positive, neutrons are neutral, and electrons are negative. Understanding these basic properties is fundamental to comprehending atomic structure and how atoms interact. Although atoms are very tiny, they consist of even smaller particles. Atoms are made of protons, neutrons, and electrons: Protons have a positive charge. Electrons have a negative charge. Neutrons are neutral in charge. A **negative particle** is a subatomic particle with a negative electric charge, primarily found in the lepton family (like electrons) or as antiparticles (like positrons). Unlike protons (positive), these particles are fundamental to atomic structure, electricity, and quantum mechanics.