Question

Which of the following parts of Dalton's atomic theory was incorrect?

Answer 1

Parts of theory...

1) All matter is made of atoms. Atoms are indivisible and indestructible.

2) All atoms of a given element are identical in mass and properties

3) Compounds are formed by a combination of two or more different kinds of atoms.

4) A chemical reaction is a rearrangement of atoms.


1) is incorrect, we have destroyed them in LHC

2) is wrong, isotopes etc

3) and 4) I'd say are right