Fred Bayer | Rosenheim | Germany | (+49) 8031 86550 | fred@bayerf.de

43 – Tc – Technetium

Tc Technetium is quite radioactive. Pitchblende (an Uranium ore) is shown here, where spontaneous fission of U-238 creates tiny amounts of Technetium. Amount: 0.2 g Pitchblende, corresponding to 0.1 pg or 600 million atoms of Tc.

Physical and chemical data
Atomic mass98.9063
Density11.49 g·cm-3
Melting point2172 °C
Boiling point4877 °C
Abundance5.00e-16 %
Oxydation levels7
Electron configuration[Kr]4d6 5s

  H   He
Li Be   B C N O F Ne
Na Mg   Al Si P S Cl Ar
K Ca Sc   Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y   Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Th Pa U Np Pu Am Cm  
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