element.nameElectron Panel Modal created by GPPT Lab99Atom NumberEsSymbolEinsteiniumNameActinideCategory3.0GroupSolidPhaseDiscovered ByLawrence Berkeley National Laboratory1952Year252.083uAtomic Mass0.000kJ/molMolar Heat245.00Atomic Radius3.0Groupg/cm38.840Density7.0Period1269.000°KBoil1133.000°KMelt
Electrons>element.nameElectron shell created by GPPT Lab contact@gppt.tnEs99
Protons and Neutronselement.nameElectron shell created by GPPT Lab contact@gppt.tn99 neutron99 Proton
Einsteinium is a synthetic element with symbol Es and atomic number 99. It is the seventh transuranic element, and an actinide. Einsteinium was discovered as a component of the debris of the first hydrogen bomb explosion in 1952, and named after Albert Einstein.