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Who predicted the existence of antimatter in 1928?

Albert Einstein
Paul Dirac
Niels Bohr
Enrico Fermi

In 1928, Paul Dirac combined special relativity and quantum theory to break down the nature of an electron travelling at a relativistic speed through his equation.

Neutrino
Proton
Positron
Muon

The positron is the antiparticle to the electron. The positron has the same rest mass (m0) as the electron but opposite charge, one positive elementary charge.

They bounce off each other
They form a stable compound
They turn into dark matter
They annihilate each other, producing energy

When a particle and its corresponding antiparticle meet, they “annihilate” each other, meaning they completely disappear and release a burst of energy in the form of photons (light particles), effectively converting their mass into pure energy.

Nuclear reactor
Particle accelerator
X-ray machine
Space telescope

The antiparticles of many other subatomic particles have been created in particle accelerator experiments.

It is found in large quantities in space
The annihilation of antimatter with matter releases a large amount of energy
Antimatter is easy to produce
It is abundant on Earth

The annihilation of antimatter with matter releases a large amount of energy.

Sci-Five: On Antimatter – Artifex.News

Sci-Five | The Hindu Science Quiz: On Antimatter