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In benzene there are sigma bonds and delocalised pi bonds between carbon atoms.
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Benzene is the simplest aromatic hydrocarbon.
This animation shows the electron configuration of the calcium atom.
This animation demonstrates the structure of nitrogen molecules, with one sigma and two pi bonds holding the atoms together.
The simplest aromatic amine. Its scientific name is phenylamine.
The simplest of the aromatic carboxylic acids.
The simplest of the aromatic hydroxy compounds.
Limestone is a widely and diversely used material.
Major phases in the history of theories and views about the structure of the atom.
Matter is made up by quarks and leptons, while interactions are carried by bosons.
Hydrogen atoms within hydrogen molecules are held together by a covalent bond.
The simplest polycyclic aromatic hydrocarbon.
A basic heterocyclic organic compound; a colourless, pungent toxic liquid.
A heterocyclic organic compound, its derivatives are thymine, cytosine and uracil.
A colourless liquid with an odour similar to benzene. The monomer of polystyrene.
An exercise about different types of bonds.