What is ' atomicity of a gas' ?
The number of atoms present in one molecule of a gas is known as its atomicity.
The atomic number of an element Y is 16. (a) What must an atom of Y do to achieve the nearest inert gas electron arrangement? (b) Which inert gas is nearest to Y?
(a) The relative atomic mass of Cl atom is 35.5 a.m.u. Explain this statement. (b) What is the value of Avogadro's number? (c) What is the value of molar volume of a gas at STP?