Question

Einsteinium. Who discovered it, how did it get its name, what element number is it, how many neutrons, protons, and electrons does it have?

Answer 1

Einsteinium-253 (half-life 20.47 days) was identified in 1952 by teams of scientists from the Lawrence Berkeley National Laboratory, the Argonne National Laboratory and the Los Alamos Scientific Laboratory. The project was led by Albert Ghiorso.
http://www.chemicool.com/elements/einsteinium.html

Actinide Es
99th element
No: of protons=99
No: of neutrons=153
No: of electrons=99