Wikia

Memory Beta, non-canon Star Trek Wiki

Watchlist Recent changes

Actinium

ELEMENT
Actinium
Symbol
(Terran)
Ac
Atomic number 89
Atomic weight (227)*
*most stable form

Actinium (symbol Ac) is a chemical element, atomic number 89 on the periodic table. Actinium, in its most stable form, has an atomic mass of 227, and was discovered by Humans for the first time in France on Earth's European continent in the year 1899. This element is the first of the actinide series of heavy elements. (ST reference: Star Fleet Medical Reference Manual)

External linksEdit

Pages on Memory Beta, non-canon Star Trek Wiki

Add a Page
37,670pages on
this wiki

Latest Photos

Add a Photo
8,150photos on this wiki
See more >

Recent Wiki Activity

See more >

Around Wikia's network

Random Wiki