The word atom goes back to a Greek origin, meaning the indivisible, Scientists put different models for the structure of the atom based on many experimental evidences, Bohr studied the difficulties faced by Rutherford’s...
Some of representative elements groups are known as regular groups, Because their elements show a great regularity & graduation in their properties and that is not found in the transition elements, One of the...
On heating atoms of a pure elements – in gaseous or vapor state – to a high temperature or exposing them to a low pressure in an electrical discharge tube , they emit a...
