Last modified on 13 July 2016, at 11:56

Einsteinium

Einsteinium
Properties
Atomic symbol Es
Atomic number 99
Classification Metallic
Atomic mass 252 amu
Other Information
Date of discovery 1952
Name of discoverer G.R. Choppin, S.G. Thompson, A. Ghiorso and G.G. Harvey
Name origin Named after the scientist, Albert Einstein.
Uses None.
Obtained from Made by bombarding uranium with neutrons. World production is probably less than 1 gram per year.


Einsteinium (Es) is synthetic, transuranic element with an atomic number of 99. Einsteinium was first noticed in the radioactive fallout from the Ivy Mike nuclear test. It was named after the noted physicist Albert Einstein.