👉 Anti-atoms are hypothetical particles that were proposed by physicist Richard Feynman in his book "Feynman Lectures on Physics" (1973). These particles are described as being made up of a single proton and a neutron, but they have no mass or charge. Their existence was later confirmed through experimental tests with the Nobel Prize-winning physicist Peter Higgs and particle physics experiments at the Large Hadron Collider (LHC). Anti-atoms were proposed because Feynman believed