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| 1. |
Why boron and aluminium tend to for, covalent compounds ? |
| Answer» Solution :Both boron and aluminium have give high sum total of first THREE ionisation enthalpies `(IE_(1)+IE_(2)+IE_(3))`.Hence, they cannot LOSE electrons easily to form `B^(3+)` ion or `Al^(3+)` ion. Hence, they form covalent compounds. | |