Name :  Technetium
Symbol :  Tc
Atomic Number :  43
Atomic Weight :  (98)
Specific Heat :  0.21 J/gK
Melting Point :  2172°C
Vaporization :  660.0 kJ/mol
Boiling Point :  4877°C
Electronegativity :  1.9
Density@293 K :  11.5 g/cm³
Discovered :  Carlo Perrier, Émillo Segrè, Italy, 1937
Description :  Silvery-gray metal. First synthetically produced element.
Uses :  Added to iron in quantities as low as 55 part-per-million transforms the iron into a corrosion-resistant alloy.