The periodic table, also called the periodic table of elements, is an organized arrangement of the 118 known chemical elements. The chemical elements are arranged from left to right and top to bottom ...

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Mark Blaskovich is a member of the Royal Australian Chemical Institute (RACI) and the American Chemical Society. Frances Separovic receives funding from Australian Research Council (ARC) and National ...

Initially dedicated at the Lawrence Berkeley National Laboratory in Berkeley, California, on March 11, 2000. Rededicated at Lawrence Hall of Science in Berkeley on August 11, 2019, during the ...

Every field of science has its favorite anniversary. For physics, it’s Newton’s Principia of 1687, the book that introduced the laws of motion and gravity. Biology celebrates Darwin’s On the Origin of ...

You may have noticed that the rock formations are very different colors. The rock formations on the left are from Red Rock State Park in Texas, and on the right is El Capitan Mountain in Yosemite ...

A basic building block of matter. There are 118 chemical elements, 94 of which occur in nature. The additional 24 are created in labs. See rare earth elements and isotope. THIS DEFINITION IS FOR ...