Real, short lived (transient), electronically neutral species.
Gram formula weight (molecular mass) = 223.01
!! All isotopes radioactive !!
is defined with respect to the entities below:
The entities below are defined with respect to:
Alkali metals (generic)
Main group element (generic)
Metallic element (generic)
Mono-bond type material (generic)
Period 7 element (generic)
Radioactive material (generic)
chemical compound molecule metal molecular science reaction mechanism ionic material acid base geometry reactivity synthesis science knowledge chemistry Lewis