ESL Saigon logo



Name: Einsteinium
Symbol: Es
Number of Energy Levels: 7
Electrons on the outer energy level: 2
Atomic number: 99
Atomic Mass: 252 Amu (Atomic Mass Units)
Protons/Electrons: 99
Neutrons: 153
Density: 8.84 g/cm3
Classification: Rare Earth

Einsteinium | Chemical elements

Einsteinium was discovered in 1952 at Lawrence Berkeley National Laboratory. It was named after Albert Einstein. Einsteinium’s melting point is at 860 °C (1133 K, 1580 °F) and its boiling point is at 996 °C (1269 K , 1825 °F).

Top 10 interesting facts about Einsteinium

  1. Einsteinium is a synthetic element created in laboratory.
  2. Einsteinium is soft and has a silvery color.
  3. Einsteinium is extremely radioactive.
  4. Einsteinium was a component of the debris of the first hydrogen bomb.
  5. Einsteinium is produced from the decay of californium-253 in nuclear reactors.
  6. Einsteinium-252 is the most stable isotope of einsteinium (half-life 471.7 days).
  7. Einsteinium is used just for scientific research.
  8. Einsteinium was used to synthesize the new element mendelevium.
  9. Einsteinium converts into berkelium then into californium.
  10. Einsteinium is a toxic element and has no biological role.

Back to index