Einsteinium is a synthetic radioactive actinide produced only in tiny amounts for fundamental research.
Atomic number
99
Category
Actinide
Period
7
Group
f-block
State
Solid
Fun facts about Einsteinium
It was first identified in debris from a thermonuclear test.
Its intense radioactivity damages samples and complicates measurements.
Einsteinium targets have helped create still heavier elements.
Common uses of Einsteinium
Production of heavier elements
Fundamental research only
Where Einsteinium sits in the periodic table
Einsteinium belongs to the actinide series in period 7 and the f-block of the periodic table. Under the conditions represented in this reference, its state is solid.
Quick chemistry revision
For quick revision, pair the symbol Es with atomic number 99 and the listed atomic mass [252]. The summary, facts, and uses above keep those element properties together in one reference.