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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Adarsh Mishra posted an Question
February 03, 2021 • 03:28 am
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30 points
30 points
- IIT JAM
- Chemistry (CY)
Alluminium have tendency to form 8 bond why??
Alluminium have tendency to form 8 bond why?? Aluminum octate se itta age kaisa chala gya??
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Priyanshu kumar Best Answer
Aluminium having 1s2 2s2 2p6 3s2 3p1 electronic configuration has free d orbitals in the form of 3d orbitals. Now there are 1 electron in 3p orbital and rest two orbitals of p orbital and five orbitals of d orbital is free for accommodating electrons. Hence maximum covalency must be equal to 1 ( pairing of already present electron in p orbital ) + 2 + 5 = 8. But small ion like aluminium can not accommodate 8 atoms around it as it cause steric hindrance and makes the compound unstable. Hence maximum covalency shown by aluminium is 6
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Dinesh khalmaniya 1![best-answer]()
Aluminium having 1s2 2s2 2p6 3s2 3p1 electronic configuration has free d orbitals in the form of 3d orbitals. Now there are 1 electron in 3p orbital and rest two orbitals of p orbital and five orbitals of d orbital is free for accommodating electrons. Hence maximum covalency must be equal to 1 ( pairing of already present electron in p orbital ) + 2 + 5 = 8. But small ion like aluminium can not accommodate 8 atoms around it as it cause steric hindrance and makes the compound unstable. Hence maximum covalency shown by aluminium is 6.