How did Dalton gather evidence for the existence of atoms?

A.
by observing an element’s atomic structure through a microscope

B.
by calculating the number of subatomic particles in an element

C.
by measuring the masses of elements after compounds are formed

Dalton gathers evidence for the existence of atoms by measuring the masses of elements after compounds are formed.

Explanation:

John Dalton accumulated proof for the presence of atoms by estimating the majority of components that responded to frame mixes. All components are made out of molecules. All particles of a similar component have a similar mass, and atoms of various components have various masses. Mixes contain atoms of more than one component.   Dalton did numerous investigations that gave proof to the presence of particles. For instance, He researched pressure and different properties of gases, from which he induced that gases must comprise of little, singular particles that are in steady, arbitrary movement.