鏷（粵拼：Pok3，Protactinium）係元素一種，符號Pa，原子序號91，原子重量231.035882。佢密度15.37，溶點1873.15，沸點4300，電負度有1.5。
維基同享有多媒體嘅嘢：
 |
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
