A longstanding mystery of the periodic table involves a group of unique elements called lanthanides. Also known as rare earth ...

Rare earth magnets are in a lot of everyday items, and make a lot of your most basic electronics work, but they're also an ...

Only a Few Grams of This Element Exist—and Scientists Have Used It to Break the Rules of the Periodic Table. ... This makes its behavior different from the lanthanide terbium, ...

One of the rarest and most mysterious elements in the periodic table has finally given up some crucial chemical secrets, eight decades after its discovery. Researchers at Oak Ridge National ...

Promethium is what is known as a "lanthanide" or "rare-earth metal." This metal is one of 15 elements that occupy the lower portion of the periodic table and carry the atomic numbers 57 through 71.

The Periodic Table of Elements is a testament to the many millennia of human exploration of the chemical world. However, not everything is known about the elements that appear in its colored and ...

Found at the heavier end of the periodic table, the lanthanides are the first elements to carry electrons in their 4f orbitals. Chemical dogma suggests that these orbitals are not keen on forming ...

Only a Few Grams of This Element Exist—and Scientists Have Used It to Break the Rules of the Periodic Table Doesn’t “organometallic sandwich” sound appetizing? By Darren Orf Published: Mar ...

The Periodic Table of Elements is a testament to the many millennia of human exploration of the chemical world. However, not everything is known about the elements that appear in its colored and ...

The periodic table included promethium and three newly discovered elements heavier than uranium - americium, curium and plutonium. Promethium, which has the symbol Pm, was the last rare-earth element ...

Promethium is the most elusive member of the lanthanide family, a row of 15 metals marooned in the periodic table’s southern territories. Discovered in 1945, ...