Most materials expand when heated. This happens because the rising temperature causes atoms to vibrate intensely, move further apart, and occupy more space. Delta-plutonium, however, breaks this ...
Plutonium (Pu) exhibits one of the most diverse and complex chemistries of any element in the periodic table. Since its discovery in 1940, scientists have synthesized and studied many different types ...
Public health advocates say the US Navy knew for almost a year that tests had detected dangerous levels of plutonium in the air at San Francisco’s Hunters Point Naval Shipyard. The Navy discovered the ...