Question

State the modifications Daiton' s atomic theory

Answer 1

Answer:

here it is

Explanation:

On the basis of new experimental facts, Dalton's atomic theory has been modified as: ... Atoms of same element may not have same atomic mass. For example, some atoms of chlorine have atomic mass 35 amu while others have atomic mass 37 amu. Such atoms of same element having different atomic masses are called isotopes.

Answer 2

Answer:

Atomic theory has been revised over the years to incorporate the existence of atomic isotopes and the interconversion of mass and energy. In addition, the discovery of subatomic particles has shown that atoms can be divided into smaller parts.

Dalton imagined atoms as solid object that we indivisible and indestructible. Both of those assumptions are obviously false and atoms are made uo of smaller objects which in turn are made up of smaller objects, so we have added two more layers of particles and string theory proposes another level.