Question

what is catenation​

Answer 1

Answer:

In chemistry, catenation is the bonding of atoms of the same element into a series, called a chain. ... Catenation occurs most readily with carbon, which forms covalent bonds with other carbon atoms to form longer chains and structures. This is the reason for the presence of the vast number of organic compounds in nature.

Answer 2

catenation is the property of the atom to form bonds or chains with other atoms

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carbon and its family exhibits this property

carbon is the excellent exhibitor of this property because of its tetravalency and small size  

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as we go down the group the size increases so it is little difficult for catenation and as carbon is small it can bond very easily with other atoms