Question

State five main assumptions of Dalton's atomic theory of matter.

Answer 1

Assumptions of Dalton's atomic theory of matter:

(1)Matter consists of very small and indivisible particles called atoms.

(2)Atoms can neither be created nor be destroyed.

(3)The atoms of an element are identical in all respects,i.e.size,mass,density,chemical properties,but they differ from the atoms of other elements.

(4)Atoms of an element combine in small numbers to form molecules of that element.

(5)Atoms of an element combine with the atoms of another element in a simple whole number ratio to form molecules of compound.