Einsteinium is an artificial chemical element, unstable, radioactive, member of the actinides group, atomic number 99 - but it is not enigmatic.
Iridium, Einsteinium
Impossible to touch einsteinium - it is very radioactive !
Einsteinium is not flammable.
Einsteinium is a metal.
Einsteinium is not corrosive.
The symbol for Einsteinium is Es
Einsteinium is not for sale.
The appearance of einsteinium is silvery.
Einsteinium is not flammable.
Einsteinium is not explosive.
Einsteinium has no odor.
The electronic configuration of einsteinium is: [Rn]5f11.7s2.