Differentiate between a covalent bond and co-ordinate bond.
Covalent Bond | Co-ordinate Bond |
1. This is formed by sharing of two electrons. Each atom supplies electron. A. +. B → A:B. |
1. One atom contributes an electron pair while the sharing is done by both atoms. X : + Y → X : Y |
2. Denoted by A - B | 2. Denoted by Xδ+ → Yδ– |
3. Formed between electron deficient atoms. | 3. Formed between a donor with a lone pair and an acceptor (electron pair deficient). |
4. Formed between atoms. | 4. Formed between molecules or between molecules and ions. |