Dalton’s Atomic Theory: Main postulates of
Dalton’s atomic theory are as follow :
(i) Matter is composed of very tiny or microscopic particles called “Atom”.
(ii) Atom is an indivisible particle.
(iii) Atom can neither be created nor be destroyed.
(iv) Atoms of an element are identical in size, shape, mass and in other properties.
(v) Atoms of different elements are different in their properties.
(vi) Atoms combine with each other in small whole numbers.
(vii) All chemical reactions are due to combination or separation of atoms.
