鍅
鍅，又譯鈁，化學元素也，符號為Fr，原子序八十七，屬鹼金屬，百金之中，其惟至烈，合水霹靂亟變。電負度其惟最低。易於衰變，富放射能，至穩者廿二分鐘折半。一九三九年，法人佩里始得之，並以祖國為名。
性不穩，所產甚微，遂無見其貌。室溫常壓下，算或為液態、反光、色銀。
同位素三十有五，天然可得者，獨鍅二二一、鍅二二三兩者，性皆不穩。性最穩者，鈁二二三也，人造，廿二分鐘折半，蓋鈾二三五衰變而成，故出於鈾礦也。
| 聲音動静，具錄於維基共享︰鍅 |
譯名見異，臺譯在先，陸譯在後，香港兼從
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