771
edits
Line 51: | Line 51: | ||
== Properties == | == Properties == | ||
Americium, a member of the [[actinides]], is a silver-white [[metal]]. With an [[atomic number]] of ninety-five and a mass number of two hundred forty-three, this element only occurs in unstable, [[radioactive]] isotopes.<ref name=rsc.orgr> [http://www.rsc.org/periodic-table/element/95/americium Americium] ''Royal Society of Chemistry''. Web. Author Unknown. Updated 2014.</ref> | Americium, a member of the [[actinides]], is a silver-white [[metal]]. <ref name=Chemicool.com> [http://www.chemicool.com/elements/americium.html Americium] ''Chemicool.com''. Web. Author Unknown Published 15 October 2012.</ref> With an [[atomic number]] of ninety-five and a mass number of two hundred forty-three, this element only occurs in unstable, [[radioactive]] isotopes.<ref name=rsc.orgr> [http://www.rsc.org/periodic-table/element/95/americium Americium] ''Royal Society of Chemistry''. Web. Author Unknown. Updated 2014.</ref> | ||
== Occurrences == | == Occurrences == |
edits