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We’ve got loads of key subject terms in our subject glossaries. There are three ways of finding what you are looking for:

  • First click on the letters of the alphabet to browse for terms.
  • Select a subject from the drop-down menu above to filter the terms by Subject.
  • Or lastly, type the term you are looking for into the search box.

EXAMPLES

Here are some examples of the kinds of definitions you’ll find on this page.

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there are not enough electrons to contribute to an ordinary covalent bond.

the arrangement of electrons in the different orbitals in an atom.

Subject:

microscopes that do not rely on light to produce images. They are used to study the internal...

a pair of electrons shared between two atoms in a covalent bond.

one reactant loses electrons and another gains electrons

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