Zirconium
Zirconium: Zirconium yog cov khoom siv tshuaj uas nws cov cim tshuaj yog Zr. Nws tus lej atomic yog 40. Nws yog cov xim dawb-dawb siab melting point hlau nrog lub teeb grey xim. Qhov ceev yog 6.49 g / cm3. Lub melting point yog 1852 ± 2 ° C, lub boiling point yog 4377 ° C. Lub valence yog +2, +3 thiab +4. Thawj ionization zog yog 6.84 eV. Qhov saum npoo ntawm zirconium yog ib qho yooj yim los tsim cov oxide zaj duab xis nrog lub luster, yog li cov tsos zoo ib yam li hlau. Nws yog corrosion-resistant thiab soluble hauv hydrofluoric acid thiab aqua regia. Nws reacts nrog cov ntsiab lus uas tsis yog-hlau thiab ntau cov ntsiab lus hlau ntawm qhov kub thiab txias los tsim cov khoom sib xyaw ua ke. Daim ntawv thov ntawm zirconium: nuclear zog khoom, zoo heev corrosion kuj, siab melting point, siab zog thiab hardness, super coj ntawm tsawg kub.