spherical shape
John Dalton imagined atoms to be indivisible and solid spheres that were akin to billiard balls. He believed that atoms of different elements had different sizes and weights, and that they combined in simple whole number ratios to form compounds.
Chemical symbols and discovery and elaboration of atoms
This was John Dalton.
Dalton thought atoms were like tiny marbles, or rigid spheres that are impossible to break. Dalton used bricks to try and explain his reasoning.
No, Dalton did not say that all atoms are the same size. Instead, Dalton proposed that all elements are composed of indivisible particles called atoms, and that atoms of different elements have different sizes and properties.
John Dalton
John dalton did. :)
John Dalton. (;
According to John Dalton, all the atoms of a single element will have the same mass. This is the basis for the modern atomic theory.
It was not John Dalton who first suggested the idea of atoms. It was the Greek philosopher and mathematician Democritus who first suggested the existence of atoms.
A thing that had a centre with a outer rim
John Dalton believed that all matter is composed of tiny indivisible particles called atoms, and that different elements have different types of atoms. He also proposed that atoms combine in simple whole number ratios to form compounds. Dalton's atomic theory revolutionized the study of chemistry.