show the formation of the following molecules with the help of electron dot structure (a) CH4 (b) CO2 (c) N2 (d) O2 (e) H2 (f) C2H6
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electron dot structure
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Electron dot structure determines the number of valence electrons a molecule posses for the formation of a compound.
- Methane contains carbon that is attached to four hydrogen atoms. Each hydrogen atom contains one valence electron. It combines with carbon that contains 4 valence electrons to form methane.
- Carbon dioxide consists of carbon and two oxygen molecules. Oxygen has six valence electrons that will combine with 4 valence electrons of carbon.
- Nitrogen exists as dimolecular or N₂. One molecule of nitrogen contains five valence electrons. N₂ contains a triple bond.
- Oxygen exists as dimolecular or O₂. One molecule of oxygen contains 6 valence electrons and exists in a double bond.
- Hydrogen also exists as dimolecular or H₂. One molecule of hydrogen contains only 1 electron and contains only a single covalent bond.
- Ethane contains two carbon atoms with 6 hydrogen atoms. Each hydrogen atoms contain one valence electron and carbon contains 4 valence electrons.
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