Its itself
Marie and Pierre Curie did not discover the atom. John Dalton is credited with the discovery of the atom and J.J. Thomson with the discovery of the electron.
Ofk
Dalton, thomas, enerst, niels and james
electrons moving in orbits about the nucleus
His MAJOR discovery was when he discovered the atom.
discovery of the atom's structure
the ancient Greeks made the atom, but they had no proof after the discovery.
Its RADIOACTIVITY!! That was the first discovery that rejects the idea that the atom is indestructible
1898
Its itself
Thomson's discovery of the electron showed that there were things smaller than the atom that could be removed from the atom. Therefor the atom was not an "uncuttable" object as Dalton had proposed.
protons
Marie and Pierre Curie did not discover the atom. John Dalton is credited with the discovery of the atom and J.J. Thomson with the discovery of the electron.
Isotopes and Electrons
The discoveries of radium and polonium doesn't affect the atom model.
I know but i wont tell you <3