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Are There Triangular Molecules?
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An unusual triangle Trigonals unite! Two diagrams show the three-dimensional structure of a methane molecule: panel A uses a ball-and-stick model with a central carbon atom connected to four hydrogen atoms in a tetrahedral arrangement, while panel B illustrates the bond angle of 109.5 degrees and bond length of 1.09 angstroms between carbon and hydrogen atoms.

Are There Triangular Molecules?: References & Edit History

Article Contributors

Primary Contributors

  • Melissa Petruzzello
    Melissa Petruzzello (she/her) is Assistant Managing Editor and covers plants, algae, fungi, insects, spiders, renewable energy and environmental engineering. She also handles certain topics in Christianity, notably Protestant history and churches. 

Article History

Type Description Contributor Date
Media added. Sep 03, 2025
New article added. Aug 29, 2025
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