TcZ =  43

From the Greek "technetos", meaning "artificial"
(AM) Atomic Mass 98  amu    Oxidation States +4, +6, +7
   (BP) Boiling Point 4877  °C    (MP) Melting Point 2172  °C
   (ρ) Density n/a    Crystal Structure Hexagonal
   ( χ ) Electronegativity 1.9    (AR) Atomic Radius 1.56  Å
   Physical State Artificial (C) Heat Capacity n/a
Electronic-Config [Kr]  4d5  5s2     (I1) First Ionization E 702.41  kJ/mol
   (ΔHvap) Heat of Vaporization 585.2  kJ/mol     (ΔHfus) Heat of Fusion 33.29  kJ/mol
   Year of Discovery 1937    Location of Discovery Italy
(E°) Standard Potential None
Stable isotopes None. All natural isotopes are radioactive
Discovered/Synthesized by Carlo Perrier, Emilio Segrč
Natural Source Not found in nature, man-made, synthetic
Common Uses Medical diagnostic tracer
Other Info None of its isotopes are stable
Lowest element with no stable isotopes
Previous Element
Next Element
Back to Table
Common Properties
Home Page