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Question
Draw an electron dot diagram to show the formation of each of the following compounds:
Methane
[H = 1, C = 6, Mg = 12, Cl = 17]
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Solution
Formation of methane molecule:
| Atom | Electronic configuration | Nearest noble gas | To attain stable electronic configuration of nearest noble gas |
| Carbon | `""_6^12C [2,4]` | Neon [2,8] | Carbon needs four electrons to complete the octet |
| Hydrogen | `""_1^1H[1]` | Helium [2] | Hydrogen needs one electron to complete the duplet |
One atom of carbon shares four electron pairs, one with each of the four aoms of hydrogen
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