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.
Here are some examples of the kinds of definitions you’ll find on this page.
a number that indicates how the atom will react during the formation of chemical bonds.
a measure of the number of bonds formed by an atom of a given element.
the force of attraction between neutral molecules or the atoms of a monatomic gas weak forces...