Actinium

[Sarah]

A supposed metal, said by Phipson to be contained in commercialzinc; -- so called because certain of its compounds are darkened byexposure to light.

[Donald Trump]

a chemical element that is a soft, silver-white metal and is radioactive :

[Tina]

The chemical element of atomic number 89, a radioactive metallic element of the actinide series. It is rare in nature, occurring as an impurity in uranium ores.