The first element in every group of representative elements shows prop

1.	The first element in every group of representative elements shows properties different from the characteristic properties of the group. Name three such elements and mention two abnormal properties of each one of them.
Answer» Boron, carbon, Nitrogen Boron: (i) W, forms acuhc. oxides -whereas owners item. am-phofork and.bask, oxide. (ii) It cannot form [BFe]³⁺ whereas others can form such type of complexes. Carbon: (i) It shows property of catenation to maximum extent. Nitrogen: (i) N₂ is gas others are solid (ii) NH₂ is liquid, other hydrides are gases.

The first element in every group of representative elements shows properties different from the characteristic properties of the group. Name three such elements and mention two abnormal properties of each one of them.

Answer»

Boron, carbon, Nitrogen

Boron:

(i) W, forms acuhc. oxides -whereas owners item. am-phofork and.bask, oxide.

(ii) It cannot form [BFe]³⁺ whereas others can form such type of complexes.

Carbon:

(i) It shows property of catenation to maximum extent.

Nitrogen:

(i) N₂ is gas others are solid

(ii) NH₂ is liquid, other hydrides are gases.