actinium

From Trekipedia
Jump to: navigation, search
actinium
{{{caption}}}

UFP Historical Society
Symbol Ac
Atomic Weight 227
Atomic Number 89
Discovered 1899
Advertising

timeline banner fasa.jpg


Actinium, element 89, was discovered in France on Earth in 1899. The most stable isotope discovered had a mass of 227.[1]

Notes and References