Accurate atomic weight values for all 118 elements with definitions, uses, history, and comparison to atomic mass and mass number.| Science Notes and Projects
Get the names and symbols of the first 20 elements of the periodic table. Learn how to use element names to predict facts about the elements.| Science Notes and Projects
Get the definition of an isotope. See examples of isotopes and learn the difference between an isotope and a nuclide of an element.| Science Notes and Projects
Get facts about tritium, the heaviest hydrogen isotope. Learn about its sources, uses, radioactive decay, and natural abundance.| Science Notes and Projects
Get the hydrogen bond definition. See types and examples of hydrogen bonds. Learn about unusual consequences of this chemical bond.| Science Notes and Projects