Learn about the post-transition metals or basic metals. Get a list of elements and discover their shared properties.| Science Notes and Projects
List of radioactive elements with no stable isotopes, plus their most stable isotopes, half-lives, key facts, and PDF for printing.| Science Notes and Projects
Get interesting plutonium facts. Plutonium is Pu with atomic number 94. Learn about the element's properties, uses, and sources.| Science Notes and Projects
Get the atomic number definition. See examples of the atomic number and learn how it differs from mass number.| Science Notes and Projects
Get the alphabetical list of element symbols for all the chemical elements on the periodic table and a free PDF list to download and print.| Science Notes and Projects