91
231.04
Protactinium
< "precursor of actinium"
1913
Kasimer Fajans, Oswald Göhring (United States, Germany)
group n/a | period 7
| f-block
Rn 5f² 6d¹ 7s²
CELTIC
BRYTHONIC
protactiniom
protactinyum
protoactiniwm
GOIDELIC
prótachtainiam
ROMANCE
EASTERN ROMANCE
protactiniu
WESTERN ROMANCE
protactini
protactinium
protoattinio
protactínio
protactinio
CONSTRUCTED
protaktinio
ALBANIAN
protaktini
GERMANIC
NORTHERN GERMANIC
Protactinium
protaktín
protactinium
protaktinium
WESTERN GERMANIC
protactinium
protactinium
protaktinium
Protaktinium
INDIC
प्रोटैक्टीनियम
پروٹیکٹینیم
IRANIAN
پروتاکتینیم
proaktînyûm
ARMENIAN
պրոտակտինիում
BALTIC
protaktīnijs
protaktinis
SLAVIC
EASTERN SLAVIC
пратактыній
протактиний
протактиній
SOUTHERN SLAVIC
протактиний
протактиниум
protaktinij
протоактиниjум
protaktinij
WESTERN SLAVIC
protaktinium
proaktyn
protaktinium
GREEK
πρωτακτίνιο
URALIC
FINNIC
protaktiinium
protaktinium
UGRIC
protaktínium
TURKIC
protaktinyum
protaktinium
KARTVELIAN
პროტაქტინიუმი
BASQUE
protaktinioa