మూస:Infobox zirconium

జిర్కోనియం, ₀₀Zr

జిర్కోనియం
Pronunciation	/zɜːrˈkoʊniəm/ ​(zur-KOH-nee-əm)
Appearance	silvery white
Standard atomic weight Ar°(Zr)
	91.224±0.002 91.224±0.002 (abridged)
జిర్కోనియం in the periodic table
Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium Ti ↑ Zr ↓ Hf యిట్రియం ← జిర్కోనియం → నియోబియం
Group	మూస:Infobox element/symbol-to-group/format
Period	period 5
Block	d-block
Electron configuration	[Kr] 4d2 5s2
Electrons per shell	2, 8, 18, 10, 2
Physical properties
Phase at STP	solid
Melting point	2128 K ​(1855 °C, ​3371 °F)
Boiling point	4682 K ​(4409 °C, ​7968 °F)
Density (near r.t.)	6.52 g/cm3
when liquid (at m.p.)	5.8 g/cm3
Heat of fusion	14 kJ/mol
Heat of vaporization	573 kJ/mol
Molar heat capacity	25.36 J/(mol·K)
Vapor pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 2639 2891 3197 3575 4053 4678
Atomic properties
Oxidation states	−2, 0, +1, +2, +3, +4 (an amphoteric oxide)
Electronegativity	Pauling scale: 1.33
Atomic radius	empirical: 160 pm
Covalent radius	175±7 pm
Spectral lines of జిర్కోనియం
Other properties
Natural occurrence	primordial
Crystal structure	​hexagonal close-packed (hcp)
Speed of sound thin rod	3800 m/s (at 20 °C)
Thermal expansion	5.7 µm/(m⋅K) (at 25 °C)
Thermal conductivity	22.6 W/(m⋅K)
Electrical resistivity	421 n Ω⋅m (at 20 °C)
Magnetic ordering	paramagnetic
Young's modulus	88 GPa
Shear modulus	33 GPa
Bulk modulus	91.1 GPa
Poisson ratio	0.34
Mohs hardness	5.0
Vickers hardness	903 MPa
Brinell hardness	650 MPa
CAS Number	7440-67-7
History
Discovery	Martin Heinrich Klaproth (1789)
First isolation	Jöns Jakob Berzelius (1824)
Isotopes of జిర్కోనియం

References

These references will appear in the article, but this list appears only on this page.