Question

(क) किसान की बहू को लछमी थी, यद्यपि पति घातिन क्यों कहा गया है
Pfm​

Answer 1

a) The number of atoms in a molecule of an element is called its atomicity. Atomicity of Hydrogen is 2, phosphorus is 4 and sulphur is 8.

b) N2means 1 molecule of nitrogen and 2N means two atoms of nitrogen.

N2 can exist independently but 2N cannot exist independently.