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| As a single pair of electrons is SHARED between them, the BOND is known as a SINGLE COVALENT BOND. A single covalent bond is represented by A SINGLE DASH between the atoms (Cl-Cl). | |
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| Another is Oxygen (O). It have 6 ELECTRONS in its valence shell. It need 2 MORE ELECTRONS to COMPLETE its OCTET.So it will SHARE its 2 ELECTRONS with another oxygen atom. | |
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| When TEO OXYGEN ATOMS come together, they each SHARE 2 ELECTRONS to COMPLETE their OCTETS. Since they share TWO PAIRS of ELECTRONS, there is a DOUBLE BOND between the oxygen atoms (O=O). | |
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