Who discovered quanta
Max Planck
What is quanta
Amounts/chunks of energy’
Who discovered energy could be emitted as a particle of a wave
Max Planck
What did Einstein use Planck’s discovery of quanta to explain
The photoelectric effect
Who came up with wave-particle duality
Louis de Broglie
Who developed the Copenhagen Interpretation
Niels Bohr
What is the Schrödinger’s cat analogy trying to say
That until observed, the cat is both dead and alive at the same time.