Mendelevium - ASCII Periodic Table of the Elements

ASCII PERIODIC TABLE OF THE ELEMENTS

  Md

Relative atomic mass: [258]

English: Mendelevium
French: Mendelevium
Croatian: Mendelevij
German: Mendelevium
Italian: Mendelevio
Spanish: Mendelevio

Atomic number: 101
Group numbers: 3
Period: 7
Standard state (20 ^oC): solid

Discovery: 1955 Albert Ghiorso, Bernard G. Harvey, Gregory R. Choppin, Stanley G. Thompson, Glenn T. Seaborg (US)

Mendelevium was discovered by Albert Ghiorso, Bernard G. Harvey, Gregory R. Choppin, Stanley G. Thompson, and Glenn T. Seaborg (US) in 1955. Named in honour of Dimitri Mendelejev, the Russian chemist who devised the periodic table. It is a synthetic radioactive metal. With extremely limited amounts of Mendelevium ever being synthesized it does not have any uses outside of scientific research capacities. Mendelevium was made by bombarding einsteinium with helium ions.

Electronic configuration: [Rn] 5f¹³ 7s²
Formal oxidation number: +2 +3
Atomic radius: - pm

Electronegativities: -
Thermal conductivity: - W/(m K)
Electrical resistivity (20 ^oC): - microOhm cm

Melting point: 827 ^oC
Boiling point: - ^oC

Heat of fusion: - kJ/mol
Heat of vaporization: - kJ/mol
Heat of atomization: 116 kJ/mol