What Are The Isotopes Of Einsteinium?

Einsteinium (Es) has nineteen known isotopes with atomic masses ranging from 240 to 258. The most stable isotope is einsteinium-252, which has a half-life of about 471.7 days. Other notable isotopes include einsteinium-253, which has a half-life of about 20.47 days and undergoes alpha decay to berkelium-249, and einsteinium-254, which has a half-life of about 275.7 days and undergoes beta decay to fermium-254. Einsteinium isotopes are primarily produced through nuclear reactions involving heavy elements such as uranium or plutonium in nuclear reactors or particle accelerators.