Yes, according to the Standard Model of particle physics, charged particles always have an opposite charged particle known as an antiparticle. Antiparticles have the same mass as their corresponding particles but have opposite electric charge.
For example, the antiparticle of the electron (a negatively charged particle) is the positron, which has a positive charge. Similarly, the antiparticle of the proton (a positively charged particle) is the antiproton, which has a negative charge.
When a particle and its corresponding antiparticle come into contact, they can annihilate each other, releasing energy in the process. This annihilation occurs because the total electric charge is conserved. The concept of antiparticles is a fundamental aspect of particle physics and is observed in high-energy particle collisions and particle accelerator experiments.
It's important to note that not all particles have electric charge, and therefore, not all particles have antiparticles with opposite charge. Neutrinos, for instance, are electrically neutral particles and are their own antiparticles. However, for charged particles, the existence of an antiparticle with opposite charge is a fundamental property of the Standard Model.