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There is evidence that some of the organisms that went extinct at the end of the Cretaceous were already beginning to decline in population strength.
Methylpentane
A hydrocarbon molecule with the chemical formula C6H14, representing an isomer of hexane, used in various chemical applications.
Methyl Group
An alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms - CH3.
Valence Shell Electron Pair Repulsion Theory
A model used to predict the geometry of individual molecules based on the repulsion between electron pairs around a central atom.
Molecular Geometry
The three-dimensional arrangement of atoms within a molecule, determined by the spatial distribution of electrons and the resulting chemical bonds.
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