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Question

Write the molecular formula of ethene and draw its electron dot structure.


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Solution

Ethene:

  • Ethene is an unsaturated hydrocarbon having a double bond between two carbon atoms and four hydrogen atoms.
  • The molecular formula of Ethene will be C2H4.

Electron dot structure:

  • Electron dot structure is given by keeping the Octet rule in mind which states that during the formation of a molecule, an atom of a particular element can gain, lose or share electrons until the stable electronic configuration of 8 electrons in its valence shell is reached.
  • The electrons in the valence shell are represented using dots.
  • Carbon has four valence electrons while hydrogen has only one valence electron.
  • The electron dot structure of Ethene will be:

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