Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
a measurement that shows the number of hydrogen atoms that can combine with one atom of a particular chemical element to make a compound , used to describe how easily an element can connect in a chemical way with others:
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions
