物理性質(Physical property):狀態:固體密度(接近室溫):19.30 g·cm?3熔點時液體密度:17.31 g·cm?3熔點:1337.33 K,1064.18 °C,1947.52 °F沸點:3129 K,2856 °C,5173 °F熔化熱:12.55 kJ·mol?1汽化熱:324 kJ·mol?1比熱容:25.418 J·mol?1·K?1 | 原子性質(Atomic properties):氧化態:-1, 1, 2, 3, 4, 5(兩性氧化物)電負性:2.54(鮑林標度)原子半徑:144 pm共價半徑:136±6 pm范德華半徑:166 pm |