Online College Courses for Credit



Author: Nathan Lampson

This lesson will provide an understanding of the basic chemistry of molecules.

See More
Fast, Free College Credit

Developing Effective Teams

Let's Ride
*No strings attached. This college course is 100% free and is worth 1 semester credit.

47 Sophia partners guarantee credit transfer.

299 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 33 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.



Molecules are groups of atoms bonded together in order to form a substance.  Each atom has electrons in a cloud surrounding its center.  When the atoms hydrogen and oxygen share electrons with one another, they become bonded together.

Oxygen atoms have 6 electrons but become more stable if they have 8 electrons.  Hydrogen atoms have 1 electron but become more stable if they have 2 electrons.

Oxygen can share its electrons with two hydrogen atoms in order to become stable and form a water molecule.