ZrZ =  40

From the Syriac/Persian "zargono", meaning "gold-like"
(AM) Atomic Mass 91.224  amu    Oxidation States +4
   (BP) Boiling Point 4377  °C    (MP) Melting Point 1852  °C
   (ρ) Density 6.44  g/cm3    Crystal Structure Hexagonal
   ( χ ) Electronegativity 1.4    (AR) Atomic Radius 1.48  Å
   Physical State Solid (C) Heat Capacity 0.278  J/g °C
Electronic-Config [Kr]  4d2  5s2     (I1) First Ionization E 659.96  kJ/mol
   (ΔHvap) Heat of Vaporization 573  kJ/mol     (ΔHfus) Heat of Fusion 14  kJ/mol
   Year of Discovery 1789    Location of Discovery Germany
(E°) Standard Potential Zr4+⇔ Zr (-1.450 V)
Stable isotopes  90Zr,  91Zr,  92Zr,  94Zr
Discovered/Synthesized by Martin Heinrich Klaproth
Natural Source The mineral/ore zircon
Common Uses Chemical pipelines, nuclear reactors, furnace bricks, abrasives, zircon gems
Other Info Most of its use goes into nuclear reactors
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