RADIOACTIVE CHEMICAL ELEMENT Crossword Clue
RADIOACTIVE CHEMICAL ELEMENT Crossword Clue
We know 1 solutions for: RADIOACTIVE CHEMICAL ELEMENT
Crossword Puzzle Infos
Actinium is a radioactive chemical element with the symbol Ac and atomic number 89. It is a silvery-white metal that is found in uranium ores and is the first element in the actinide series. Actinium has a half-life of 21.772 years and decays into thorium-234 through alpha decay. It is used in nuclear medicine and research, and is also used in the production of radioluminescent paints.