its not true
The answer to the Question in (no)
An atom cannot be weighed directly on a balance; the Atomic Mass is calculated from another data. John Dalton was the first to propose atomic weights for some elements as H, O, N, C, S, P.
John Dalton
John dalton did. :)
Thomson
John Dalton
john dalton:)
It was proposed by John Dalton in his atomic theory.
John Dalton proposed that elements are made of extremely small particles called atoms. He believed that atoms could join together or "hooked" to form elements.
john dalton.
John Dalton, a british chemist, explained that elements are made of atoms and different elements have atoms of different mass
John Dalton, the father of modern chemistry, said that atoms combine in simple whole-number rations to form compounds.
John Dalton it was referred to the atoms of the same element.
I know it would be DaltonWho discovered that atoms are made of a single material formed into different shapes and sizes? that would be Dalton
Modern Atomic Theory was developed by British scientist, John Dalton. His theory rested on four factors. Chemical elements are composed of atoms. Atoms in an element, are identical to the weight of the element. Atoms of different elements have different weights. To form compounds, atoms are combined in small, whole-number ratios.
The five main points of John Dalton's atomic theory are as followed: · Elements are made of tiny particles called atoms. · All atoms of a given element are identical. · The atoms of a given element are different from those of any other element. · Atoms of one element can combine with atoms of other elements to form compounds. · A given compound always has the same relative numbers of types of atoms. · Atoms cannot be created, divided into smaller particles, nor destroyed in the chemical process. A chemical reaction simply changes the way atoms are grouped together.
Amongst other things, John Dalton thought of matter as being made up of particles. His particle theory is sometimes referred to as the 'billiard ball model' since he thought of atoms as being indivisible, unlike what we know nowadays. He also worked on the chemical formulae of different substances.
Chemical symbols and discovery and elaboration of atoms
John Dalton is considered as the father of chemistry because of his first model of an atom.They are as follow: 1. Every matter is made up of very small particles known as an atom which are indivisible.2. Atoms cannot be created nor destroyed by any chemical process i.e..., atoms are indestructible. 3. All atoms of same element are same i.e.., identical in shape, mass, chemical properties etc. 4. Atoms of different elements are different sizes, masses and chemical properties etc. 5. Atoms of 2 or more elements combine together in a to form compound atoms, which they do so in simple numerical ratios(1:1 etc).