Question

Who was the first to propose the existence of atoms? John Dalton Democritus Joseph Proust Ernest Rutherford

Answer 1

Democritus, he came up with the idea that the entire world was made up of tiny invisible particles.

Answer 2

Answer is: Democritus.

Democritus (c.460 — c.370 BC) was an Ancient Greek philosopher.

According to his atomic theory:

1) everything is composed of atoms.

2) atoms are physically indivisible

3) there is empty space between atoms.

4) atoms are indestructible and in motion.

5) there is an infinite number of atoms, which differ in shape and size.