Answer
Electroweak theory unifies the electromagnetic and weak forces, two of the four fundamental forces in nature. Developed in the 1960s by Sheldon Glashow, Abdus Salam, and Steven Weinberg, Theory describes how the electromagnetic force, responsible for interactions between charged particles like electrons and protons, and the weak force, responsible for processes such as radioactive decay, are interconnected and can be understood as different aspects of a single underlying force.