Dot-and-cross diagram of ethene (C₂H₄) for students to complete

An example figure from the Dot-and-Cross Diagram generator.

The overlapping outer shells of ethene, two carbons and four hydrogens, with no electrons drawn, and an answer key under them
The outer shells of ethene, C₂H₄, drawn with no electrons, for students to add them: two overlapping carbon circles, each overlapped by two hydrogen circles. The answer key under it gives each atom’s bonding pairs, four for each carbon, including the double bond, and one for each hydrogen.

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Answer key

  • Each C: 4 bonding pairs, no lone pairs
  • Each H: 1 bonding pair, no lone pairs

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