Einsteinium is a synthetic metal with the atomic number 99, belonging to the actinide series. It was discovered in 1952 from the debris of a hydrogen bomb. This metal is highly radioactive and has a very short half-life, making it extremely unstable and dangerous to handle.
facts
| Atomic number | 99 |
| Atomic mass | 252 |
| Melting point | 1,580 °F |
| Boiling point | 1,825°F |
| Density | 8.84g/cm3 |
| Discovered By | Albert Ghiorso |
| Year Discovered | 1952 |

The history of Einsteinium
Einsteinium was discovered in December 1952 by Albert Ghiorso and his team at the Lawrence Berkeley National Laboratory. They found it in the radioactive debris from the first Ivy Mike hydrogen bomb test. This synthetic and highly radioactive metal was named after Albert Einstein and remained a secret until 1955 because of Cold War tensions. Today, einsteinium is mainly produced for and used in scientific research.
Where it’s used today
Einsteinium is used exclusively in fundamental scientific research to study the properties of transuranic elements, synthesize heavier elements like mendelevium, and conduct advanced actinide chemistry studies.Â