101

Md

Mendelevium
[ 258 ]
 Historical Information

Mendelevium, the ninth transuranium element of the actinide series to be discovered, was first identified by Seaborg and others in 1955 as a product of the bombardment of the einsteinium isotope 253Es with helium ions. The isotope produced was 256Md, which has a half-life of about 11/4 hours.

Basic Information Shells
  • Name: Mendelevium
  • Symbol: Md
  • Atomic number: 101
  • Atomic weight: [ 258 ]
  • Standard state: solid at 298 K
  • Group in periodic table:
  • Group name:Actinoid
  • Period in periodic table: 7
  • Block in periodic table: f-block
  • Classification: Metallic
 Mendelevium
Uses Trivia
  • It has no uses.

Mendelevium is a radioactive rare earth metal named after Dmitri Mendeleev, father of the Periodic Table.