his research continued in the years 1803-1807
John Dalton proposed his atomic theory in 1803, which stated that all substances are made of atoms. His work laid the foundation for modern chemistry by introducing the idea that atoms are the basic building blocks of matter. Dalton's theory was pivotal in understanding chemical reactions and the composition of substances.
who said that all substances are made up of atomsIt's actually Dalton, because it sayes so in my textbook for school.
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.
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 believed that all elements are made of atoms and that atoms are identical if they are of the same element. He is the first one to have combined substances to make new substances through chemical reactions.
In my textbook it sayes that actually Dalton believed that all substances are made of atoms, and this was part of his atomic theory, which he published in 1803.
Dalton visualizes "atoms" as being indestructible and that all matter were made of atoms
John Dalton is best known for his pioneering work in the development of modern atomic theory. His discoveries included the concept that all matter is made up of indivisible particles called atoms, that each element is made of unique atoms, and that chemical reactions involve rearrangement of these atoms. Dalton's work laid the foundation for future advancements in the field of chemistry.
Dalton
This was John Dalton.
Benjamin Franklin did not discover the structure of atoms. The atomic theory was formulated by John Dalton in the early 19th century, proposing that all matter is made up of indivisible particles called atoms.
Dalton believed that atoms combined in fixed whole number ratios to form new substances through chemical reactions. He proposed that atoms were indivisible and that different elements were made up of unique atoms that combined in simple ratios to create compounds. This atomic theory formed the basis for modern chemistry.