Today in Science History – December 26 – Clemens Winkler and Germanium

December 26 is Clemens Winkler’s birthday. Winkler was the German chemist who discovered the element germanium. While working as a professor of chemistry at the Freiberg School of Mines, he was given a sample of a new mineral discovered by a fellow professor named Albin Weisbach. Weisbach found a new […]

Vibrant Periodic Table With 118 Elements

Periodic Table PDF – 2018 Edition With 118 Elements   Recently updated !

Choose from a large collection of printable periodic table PDF files. Included are color periodic tables, black and white tables, blank tables, and a wide selection of specialty tables. We also have a selection of periodic tables in other languages besides English. Periodic Table PDF Files Color Periodic Table – […]

This is a disk of americium-241 viewed under a microscope. Bionerd, Creative Commons License

Americium Facts – Element 95 or Am

Element Name: Americium Atomic Number: 95 Symbol: Am Atomic Weight: 243.0614 Electron Configuration: [Rn] 5f7 7s2 Atomic Number: 95 Element Classification: Radioactive Rare Earth Element (Actinide Series) Discovered By: G.T.Seaborg, R.A.James, L.O.Morgan, A.Ghiorso Discovery Date: 1945 (United States) Name Origin: named for the American continent, similar to the naming of […]

Periodic Table Christmas Tree

Chemistry up your Christmas celebration with this periodic table Christmas tree. This Christmas tree contains all 118 elements of the periodic table including the proposed names of elements 113, 115, 117, and 118. Each tile contains the element’s number, symbol, and name. Wear Your Own Chemis-tree (or enjoy a coffee) […]