The smallest unit of matter is the atom.
FMOT @DameDash_DatGuy was here
Atomic theory proposed by John Dalton
Dalton's theory was based on the premise that the atoms of different elements could be distinguished by differences in their weights. He stated his theory in a lecture to the Royal Institution in 1803. The theory proposed a number of basic ideas:
All matter is composed of atoms
Atoms cannot be made or destroyed
All atoms of the same element are identical
Different elements have different types of atoms
Chemical reactions occur when atoms are rearranged
Compounds are formed from atoms of the constituent elements.
Using his theory, Dalton rationalised the various laws of chemical combination which were in existence at that time. However, he made a mistake in assuming that the simplest compound of two elements must be binary, formed from atoms of each element in a 1:1 ratio, and his system of atomic weights was not very accurate - he gave oxygen an atomic weight of seven instead of eight.
Despite these errors, Dalton's theory provided a logical explanation of concepts, and led the way into new fields of experimentation.
elements are composed of indivisible atoms and all atoms of a given element are identical and atoms of different elements are different that is they have different and have different masses and compound are formed by the combination of atoms of different element
no.
How can an STM help prove Daltons theory
ttha atoms made up pthe smallest forms of matter
Are you doing this for a "cumulative take home exam"?
The idea that atoms are indivisible and indestructible, and the idea that all atoms of the same element have the same mass.
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Dalton's theory was irrelevant to the total compensation of of the Atomic Mass.
the Greek Philosophers did not test their theory.
no.
Atoms cannot be divided into smaller particles.
dalton wasnt the one who experimented with gold, rutherford was the one who did the gold foil experiment.
How can an STM help prove Daltons theory
ttha atoms made up pthe smallest forms of matter
This postulate is valid today only in some situations.
Dalton's atomic theory or model was accepted despite errors. This is because his theory provided a logical explanation of concepts and led the way to new experimentations.
In Dalton's theory the electrons in the atom travel in a one layered orbital rotation around the nucleus, in the modern, or electron cloud, theory the electrons travel in a more radical patterned movement while still staying in their respected energy levels.
Are you doing this for a "cumulative take home exam"?