Glossary

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Looking for a quick definition?

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.

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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