41 Nb Niobium (plaintext) | |
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 Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn | |
Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og | |
Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu | |
Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr | |
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| Niobium | | |
| 92.90637 u | | |
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Wiki Article: Niobium | |
Electron Configuration: [Kr]5s1 4d4 | |
Electronegativity: 1.6 | |
Atomic Radius: 207 pm | |
Ionization Energy: 6.759 eV | |
Electron Affinity: 0.893 eV | |
Oxidation States: +5, +3 | |
Standard State: Solid | |
Melting Point: 2750 K | |
Boiling Point: 5017 K | |
Density: 8.57 g/cm3 | |
Family: Transition metal | |
Year Discovered: 1801 | |
Number of Neutrons: 52 | |
Number of Protons: 41 | |
Number of Electrons: 41 | |
Number of Valence: | |
Valency: | |
Group: 5 | |
Period: 5 | |
Shell: d-shell | |
Specific Heat: 0.265 J/g K | |
Radioactive: 0 | |
Occurrence: Natural | |
Source: Dying low-mass stars |