Protactinium Pa · 91
solid metal · period 7 · f-block· actinide
solid metal · period 7 · f-block· actinide
Transliteration. The phonetic half approximates the international name. Protactinium
Every form found in the sources, from the first missionary chemistry books of the 1850s to the current standards. Hover a dot for the source. Simplified 镤, traditional 鏷.
Same syllable, different tone: 镨 pǔ Praseodymium.
Japanese プロトアクチニウム Korean 프로탁티늄 Vietnamese protactini
Western name from Greek πρῶτος + ἀκτίς, “first beam element”. Compare all
U+9564 in CJK Unified Ideographs