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43 Tc Technetium (plaintext) |
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H He |
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Li Be B C N O F Ne |
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Na Mg Al Si P S Cl Ar |
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K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr |
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Rb Sr Y Zr Nb Mo[Tc]Ru Rh Pd Ag Cd In Sn Sb Te I Xe |
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Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn |
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Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og |
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Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu |
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Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr |
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| 43 _____ | |
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| Technetium | |
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| 96.90636 u | |
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Wiki Article: Technetium |
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Electron Configuration: [Kr]5s2 4d5 |
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Electronegativity: 1.9 |
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Atomic Radius: 209 pm |
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Ionization Energy: 7.28 eV |
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Electron Affinity: 0.55 eV |
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Oxidation States: +7, +6, +4 |
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Standard State: Solid |
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Melting Point: 2430 K |
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Boiling Point: 4538 K |
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Density: 11 g/cm3 |
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Family: Transition metal |
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Year Discovered: 1937 |
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Number of Neutrons: 55 |
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Number of Protons: 43 |
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Number of Electrons: 43 |
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Number of Valence: |
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Valency: |
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Group: 7 |
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Period: 5 |
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Shell: d-shell |
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Specific Heat: |
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Radioactive: 1 |
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Occurrence: Rare |
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Source: Radioactive decay |
