Get facts about the actinides on the periodic table (actinide series or actinoids), including a list of elements and their properties.| Science Notes and Projects
Learn about lanthanide contraction (lanthanoid contraction). See the trend in ion sizes and learn why it occurs.| Science Notes and Projects
Get the spontaneous fission definition and examples and learn how it differs from induced fission in physics.| Science Notes and Projects
Get oganesson facts. Learn about the history, properties, uses, and sources of element 118 or element symbol Og.| Science Notes and Projects