According to _______________ atomic theory atoms consisting of subatomic particles like electrons ,protons and neutrons.

According to ______________ atomic theory an atom is the smallest unit of matter which takes part in a chemical reaction

According to _______________ atomic theory atoms are divisible and destructible

Oxygen has_________ isotopes.

According to _______________ atomic theory atoms are neither created nor destroyed.

______________ was an ancient greeck philosopher studied the nature of the matter and the basic constituents of all substance.

__________________ discovered that cathode rays are deflected by magnetic and electric field.

_____________ gains three electron in its valence shell forming an anion with three negative charge.

According to _______________ atomic theory,matter consists of small indivisible particles called atoms.

_______________ loses two electrons from its valence shell forming a cation.