Mendelevium

Analytical testing dots

Mendelevium is a synthetic element with the symbol Md (formerly Mv) and the atomic number 101. A metallic radioactive transuranic element of the actinides, mendelevium is synthesized by bombarding einsteinium with alpha particles.

 

General
Name, Symbol, Number mendelevium, Md, 101
Chemical series actinides
Group, Period, Block n/a, 7, f
Appearance unknown, probably silvery
white or metallic gray
Standard atomic weight (258) g·mol-1
Electrons per shell 2, 8, 18, 32, 31, 8, 2
Physical properties
Phase solid
Melting point 1100K
(827°C, 1521°F)
Atomic properties
Oxidation states 2, 3
Electronegativity 1.3 (Pauling scale)
Ionization energies 1st: 635 kJ/mol
Miscellaneous
Magnetic ordering no data
CAS registry number 7440-11-1

 

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