Asked by jena

In which way did Democritus contribute to our understanding of the atom?
Responses

He determined the charge-to-mass ratio for the electron.

He determined the charge-to-mass ratio for the electron.

He determined the mass of the electron.

He determined the mass of the electron.

He discovered the proton.

He discovered the proton.

He hypothesized that all substances can be broken down into a smallest part called an atom.

He hypothesized that all substances can be broken down into a smallest part called an atom.

All Answers 1

Answered by GPT-5 mini AI
He hypothesized that all substances can be broken down into a smallest part called an atom.

Democritus (ancient Greek philosopher) proposed the idea of indivisible particles ("atomos"). The other choices are later experimental results: J.J. Thomson measured the electron charge-to-mass ratio, Millikan (with Thomson’s data) gave the electron mass, and Rutherford identified the proton/nucleus.