Answer:
Well , John Dalton is one of my greatest admiration when it comes to scientists.
His theory about atom called as Dalton’s atomic theory , was genuinely remarkable.
Its because we do had philosopher who took a deep peep in the ideas and insight of atom.But Sir John Dalton became the torchbearer and the rest are with every individual in energy walk of life.
Some incorrect aspects were
Atom is the indivisible particle of an element. But, we are well familiar with the sub atomic particle of atom . If NOT 200 + but atleast with 3 ,namely proton, electron , neutron.
Dalton assumed that, each atom of an element are identical in all respects. But we know the idea of isotopes( same atomic no. But different mass no.).