Question

state and explain Dalton's atomic theory. ​

Answer 1

Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties. ... The first part of his theory states that all matter is made of atoms, which are indivisible. The second part of the theory says all atoms of a given element are identical in mass and properties.

Answer 2

$\boxed{\textbf{Dalton's Atomic Theory}}$

$\underline{\textbf{Dalton's want To convey\\ Through His Atomic Theory.}}$

(1)Matter is made of Tiny Indivisible particles called Atoms.They can't be Divided, Destroy or Transform from one element to other.

(2) Elements Have Own Identical Atoms.Means All have Atoms of All elements are Different from Each other.

(3)Atoms of Different Elements take part in chemical reaction and combine in a ratio to form Compounds.

$\underline{\textbf{However Some Of his \\Theory Proved wrong in later\\ years As follow }}$

(1)With Discovery of Electron,Proton and neutron .It was Concluded That Atoms Can be divided.

(2)With Discovery of Isotopes.It was proved that Atoms of same elements can have Different weight,Means Elements have not their own identical Atoms .

He had said'Atoms are tiniest particle of matter which take part in chemical Reaction'



Accoring to Dalton, An Atom don't contained any sub atomic particles and can't be devided further.

Thus an atom was indiscrete, indivisible and smallest particle of matter.

However Dalton's Law of conservation theory .Today in modern Is accepted.