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Einsteinium

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INTRODUCTION

Einsteinium is a synthetic radioactive element, and one of the transuranium (elements that is after uranium on the periodic table) in the actinide series of the periodic table. It was named after Albert Einstein.

The element was discovered in the debris produced by a thermonuclear explosion. It evaporates more readily than barium or calcium, which were the most readily vaporizable divalent elements previously known.

BASIC INFORMATIONS

  • Atomic Number
  • 99
  • Atomic Mass
  • 252
  • Ionic radius
  • N/A
  • Ionization energy
  • N/A
  • Electronic config
  • 2,8,18,32,29,8,2
  • Principal Valency
  • +2
  • Density g/cm³
  • N/A
  • Melting point °C
  • 860
  • Boiling point °C
  • N/A
  • Type of Element
  • Metal
  • Electronegativity
  • N/A
  • Element Category
  • Actinide series
  • Appearance
  • Silvery solid
  • Block
  • f-block
  • Period
  • 9
  • Group
  • 14
  • No of Isotopes
  • 19
  • Occurrence
  • Artificially Made
  • Abundance in ppm
  • Nil
  • Year of Discovery
  • 1952

EXTRACTION

It is obtain by electrolysis of its fused salts or reducing its halides with calcium

OXIDATION STATES

+2,+3,+4

MAJOR SOURCE

Irradiated plutonium and other elements

HALF LIFE

250 days

ECONOMIC IMPORTANCE

* It is used extensively in research works.

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