He concluded that all atoms of an element have same mass and identical chemical and physical properties.
john dalton
To develop his Atomic theory, John Dalton supported his claims on his own previous research on combination of gases, his findings regarding how certain gases could only be combined in certain proportions, no matter if they shared common elements, that led him to think that elements combination was being realized at a very primary level, among very tiny particles. He called those particles 'atoms', from the Greek word 'atomos', which means 'uncut'.
The atomic theory of John Dalton is from 1801-1802.
John Dalton's atomic theory did not support Aristotle's ideas; in fact, it contradicted them. Aristotle believed that matter was continuous and composed of four elements (earth, water, air, fire), while Dalton proposed that matter is made up of indivisible atoms, which are the fundamental building blocks of all substances. Dalton's theory laid the groundwork for modern chemistry, moving away from Aristotle's qualitative approach to a quantitative understanding of matter.
The concept of atoms, or particles that make up all of matter, is an ancient one. However, John Dalton came up with the first scientific atomic theory in the early 1800s.
John Dalton concluded that gases were made up of solid particles with empty spaces between them. This idea helped contribute to the development of the atomic theory of matter.
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.
Not necessarily, because most elements have isotopes, which have slightly different weights. However, atoms of a particular element always have the same number of protons, equal to the atomic number of the element.
Chemical symbols and discovery and elaboration of atoms
This was John Dalton.
spherical shape
This theory was proposed by the ancient Greek philosopher Democritus. He postulated that all matter is composed of indivisible particles called "atoms" that vary in size and shape to create different substances.
John Dalton published his atomic theory in 1808, proposing that all matter is made up of small, indivisible particles called atoms. He also introduced the concept of atomic weight and the idea that elements are made up of atoms of a single, unique type.
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. (;