matter-antimatter difference

Matter and antimatter are counterparts with opposite properties, like electric charge. If an atom of matter encounters its antimatter equivalent (for example, an electron and a positron), they annihilate each other, releasing energy. The key difference lies in their quantum properties: antimatter particles have the same mass as matter particles but opposite charges and other quantum numbers. Despite their similarities, our universe is mostly matter, which remains a scientific mystery, as equal amounts of matter and antimatter should have created equal amounts of energy. Understanding this imbalance is a major focus in physics research.