Chemical bonds are connections between atoms. Learn the three types of bonds and how they work.
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The Periodic Table is one of the richest and most fascinating discoveries of the modern era.
Atoms are made of protons, neutrons, and electrons. Learn how to know how many are found in different atoms.
The understanding of the atom has changed over many years. Learn some of the key moments of this dramatic story as told by two lively chemistry teachers.
Molecular Formula Problems are one of the hardest types of problems to solve in Chemistry. Learn the easy way to solve these complex problems.