Symbol Es
Atomic Number 99
Atomic Mass 252
Discovered by Einsteinium was discovered as a component of the debris of the first hydrogen bomb explosion in 1952.

What is Einsteinium?

  • Einsteinium is a synthetic element and a part of the periodic table with atomic number 99.
  • Einsteinium which is transuranium was discovered during the analysis of nuclear products recovered from debris following a thermonuclear explosion (Weapon test device, “Mike”, November 1952) in the Pacific Ocean. Through initial investigations, fermium and other element were discovered.
  • The second element was named in honor of Albert Einstein, and given the symbol, it is produced through a chain of nuclear reactions that involves bombarding each isotope then allowing isotope beta decay.

Properties of Einsteinium

Group Actinides Melting point 860°C, 1580°F, 1133 K
Period 7 Boiling point Unknown
Block f Density (g cm−3) Unknown
Atomic number 99 Relative atomic mass [252]
State at 20°C Solid Key isotopes 252Es
Electron configuration [Rn] 5f117s2 CAS number 7429-92-7
ChemSpider ID 22356 ChemSpider is a free chemical database

Uses of Einsteinium

  • Only tiny amounts of einsteinium have ever been produced, it is mainly used in scientific studies. Radioactive decay can be discovered through Einsteinium.
  • It is among the heaviest element on which bulk studies can be performed.
  • It has a few medical uses but they are not commercial.
  • It is used majorly to study radiation damage, targeted radiation medical treatments and for accelerated aging.

Practise This Question

Correct statements among the following is / are


A.D - Glucose and L - glucose are enantiomers

B.α- D - Glucose and β- D - Glucose are anomers

C.Glucose and fructose are functional group isomers

D.D - glucose has 2R, 3R, 4S, 5R configuration