Radon is not an actinide, it is a noble gas.
An actinon is a radioactive isotope of an actinide, sometimes used exclusively for an isotope of radon.
Plutonium is an actinide
No uranium is an actinide and is very hard especially depleted uranium
The lowest atomic number actinide is actinium, with the atomic number 89.
as a consequence of actinide contraction the radius of the metal atom decreases as the 5f electrons of the actinides are poorly shielded. (Due to this poor shielding it is more strongly attracted by the nuclear charge resulting in decreased radius)
There are no elements in Radon, Radon is an element in its own right.
Einsteinium is a trivalent actinide metal.
Actinide
Ac
The actinide series.
No. Americium is an actinide.
Radon is NOT reactive.