Erwin Schrödinger developed the quantum model of the atom. What scientific knowledge was necessary for Schrödinger’s work?

Schrödinger’s quantum model describes how electrons behave in atoms, so knowledge that electrons exist was necessary for his work. The discovery of gamma rays was not essential to formulating the model, and microscopes cannot directly see subatomic particles. Computers were not needed for Schrödinger to develop his equation.

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