The maximum covalency of aluminium is 6 where as that of boron is '4'

1.	The maximum covalency of aluminium is 6 where as that of boron is '4' because
Answer» ALUMINIUM is more electropositive than BORON Al' can form a cation where as boron can not Al' contains VACANT 'd' orbitals in its valence shell where as boron does not 'Al' is a metal where as boron is a NON metal ANSWER :C

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