Get promethium facts. Discover the history, properties, uses, and sources of the element with symbol Pm and atomic number 61.| Science Notes and Projects
Carbon is the sixth element of the periodic table. Get carbon facts, including chemical and physical data, general information, and history.| Science Notes and Projects
Get the triple point definition and table of values. Learn about the triple point of water and its temperature.| 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
Learn about ozone, including what it is, what it smells like, and its properties. Discover how it protects against UV radiation.| Science Notes and Projects
Get the element definition in chemistry. See examples of chemical elements, learn how many there are, and see how they are identified.| Science Notes and Projects