Einsteinium (Es)
Einsteinium was discovered in the fallout of the first hydrogen bomb test and named after Albert Einstein.
Properties of Einsteinium
- Atomic number
- 99
- Category
- Actinide
- Atomic mass
- 252 u
- Electron configuration
- [Rn] 5f¹¹ 7s²
- Melting point
- 1133 K (859.85 °C)
- Boiling point
- 1269 K (995.85 °C)
- Density
- 8.84 g/cm³
- Electronegativity (Pauling)
- 1.3
- Appearance
- Silvery, glowing metallic
- Discovered by
- Albert Ghiorso (1952)
Facts about Einsteinium
- Einsteinium is named after Albert Einstein!
- Einsteinium was discovered in the debris of the first hydrogen bomb explosion!
- Its discovery was kept secret for several years!
- Einsteinium glows blue due to its intense radioactivity!