氪氣(qi)是稀有氣(qi)體,無(wu)色、無(wu)味、無(wu)毒、惰性(xing)(xing),氪氣(qi)集中存在于大(da)氣(qi)中。氪氣(qi)能吸收X射(she)線(xian)(xian),用作X射(she)線(xian)(xian)的(de)遮光材料。在低(di)溫和射(she)線(xian)(xian)輻射(she)下能與(yu)氟(fu)形成二氟(fu)化氪,真空放電時發出(chu)黃綠(lv)色輝光,用作霓虹燈。也用作高效燈泡(pao)中的(de)惰性(xing)(xing)保(bao)護氣(qi)體。氪的(de)放射(she)性(xing)(xing)同位素可用于探測金屬...