Which of these theoretical phycisists first predicted the existence of antimatter?

The story behind the answer

Paul Dirac first predicted antimatter in 1928 when his relativistic wave equation for the electron produced “negative-energy” solutions. Rather than dismiss them as math quirks, Dirac proposed they represented real particles: electrons with opposite charge—positrons. This bold idea was confirmed in 1932 when Carl Anderson observed the positron in cosmic rays, turning theory into reality.

Memory tip: Dirac’s “double” solutions → “double” matter (particle/antiparticle). Contrast: Bohr modeled atomic structure, Heisenberg introduced the uncertainty principle, and Einstein unified space-time and energy-mass but didn’t predict antimatter. Dirac’s work showed how combining quantum mechanics with special relativity can reveal entirely new forms of matter.