Einsteinium • Actinide Rare Earth

Symbol: Es
Date of discovery: 1952
Name origin: Albert Einstein
Appearance: unknown
Discoverer: Albert Ghiorso
Obtained from: man-made

Melting point: 1133 K
Boiling point: unknown
Density[kg/m3]: unknown
Molar volume: unknown
Protons/Electrons: 99
Neutrons: 153
Shell structure: 2,8,18,32,29,8,2
Electron configuration: [Rn]5f117s2
Oxidation state: 3
Crystal structure: unknown

Einsteinium, named after theoretical physicist and Nobel Prize winner Albert Einstein, is a synthetic element that is highly radioactive. It is produced by bombarding plutonium with neutrons. It was discovered in 1952 after two teams examined the debris of the first hydrogen bomb test. They found that einsteinium-253 was made by the nuclear fusion of 15 neutrons with uranium-238. Because of the tensions of the Cold War, these results were kept secret until 1955. In 1961, a sample weighing 0.01 mg of Es-253 was synthesized.

 

Einsteinium • Actinide Rare Earth

Products

Nexsa G2 XPS

  • Micro-focus X-ray sources
  • Unique multi-technique options
  • Dual-mode ion source for monoatomic & cluster ion depth profiling
Style Sheet for Instrument Cards Original

K-Alpha XPS

  • High resolution XPS
  • Fast, efficient, automated workflow
  • Ion source for depth profiling

ESCALAB Xi+ XPS

  • High spectral resolution
  • Multi-technique surface analysis
  • Extensive sample preparation and expansion options


Contact us

Style Sheet for Global Design System
Style Sheet for Komodo Tabs
Style Sheet to change H3 to p with em-h3-header class
Style Sheet to change H2 style to p with em-h2-header class
Style Sheet for Products Table Specifications
Style Sheet for Global Design System
Style Sheet for Komodo Tabs
Style Sheet to change H3 to p with em-h3-header class
Style Sheet to change H2 style to p with em-h2-header class
Style Sheet for Products Table Specifications
Fix for left nav
Style Sheet for Support and Service footer
Style Sheet for Fonts
Style Sheet for Cards

Electron microscopy services for
the materials science

To ensure optimal system performance, we provide you access to a world-class network of field service experts, technical support, and certified spare parts.