鋯(Zirconium)是一種化學元素，它的化學符號是Zr，它的原子序數是40，是一種銀白色的高熔點金屬，呈淺灰色。

密度6.49克/立方厘米。熔點1852±2℃，沸點4377℃。化合價+2、+3和+4。第一電離能6.84電子伏特。

鋯的表面易形成一層氧化膜，具有光澤，故外觀與鋼相似。有耐腐蝕性，可溶于氫氟酸和王水;高溫時，可與非金屬元素和許多金屬元素反應，生成固體溶液化合物。

Zirconium is a chemical element with the chemical symbol Zr and an atomic number of 40. It is a silver white high melting point metal with a light gray color.

Density 6.49 grams per cubic centimeter. Melting point 1852 ± 2 ℃, boiling point 4377 ℃. Valence+2,+3, and+4. The first ionization energy is 6.84 electron volts. Zirconium is prone to forming an oxide film on its surface, which has a glossy appearance similar to steel. Corrosion resistance, soluble in hydrofluoric acid and aqua regia; At high temperatures, it can react with non-metallic elements and many metallic elements to form solid solution compounds.