Actinium

From Conservapedia

Actinium
Name	Actinium
Symbol	Ac
Atomic number	89
Atomic mass	227.0 amu
Classification	Transition Metal
Crystal structure	Cubic
Color	Silver
Date of discovery	1899
Name of discoverer	André-Louis Debierne
Name origin	From the Greek aktinos.
Uses	Unknown
Obtained from	Unknown, as it is extremely rare.

Actinium is a very rare radioactive chemical element. It is silvery-white and glows blue in the dark. ^[1]

References

1. ↑ Encylopaedia Britannica online, Actinium