Dalton's atomic theory

Merits of Dalton's atomic theory:

·     It has enabled us to explain the laws of chemical combination.

·     Dalton was the first person to recognize a workable distinction between the ultimate particle of an element (atom) and that of a compound (molecule).

Thomson Atomic Model(1898)

1.  Atom Possesses a spherical shape in which the possitive charge is uniformly disributed.

2.  The electrons are embeded into it in such a manner as to give the most stable electrostatic arrangement.

3.  These models also named as plum pudding or watermelon

4.  It is also expalined the overall neutrality of the atom

5.  He was Awarded Nobel Prize in 1906 for his theoretical and experimental investigation on the conduction of electricity by gases .