protactinium

See also: Protactinium

English

Chemical element
Pa
Previous: thorium (Th)
Next: uranium (U)

Etymology

proto- +‎ actinium.

Pronunciation

• IPA^(key): /ˌpɹəʊ.tækˈtɪn.i.əm/
• enPR: prō"tăktĭ'nēəm, IPA^(key): /ˌpɹoʊ.tækˈtɪn.i.əm/

• Audio (US):

  (file)

Noun

protactinium (uncountable)

1. A chemical element (symbol Pa) with atomic number 91: a dense, silvery-gray actinide metal.

Synonyms

• protoactinium (dated)

Usage notes

It was called protoactinium until 1949. Then the name was shortened.

Derived terms

• eka-protactinium

Related terms

• actinium

Translations

chemical element

• Afrikaans: protaktinium (af)
• Albanian: protaktin
• Arabic: بْرُوتَكْتِنْيُوم m (brutaktinyum)
• Armenian: պրոտակտինիում (hy) (protaktinium)
• Asturian: protactiniu m
• Basque: protaktinioa
• Belarusian: пратакты́ній m (prataktýnij)
• Breton: protaktiniom (br)
• Bulgarian: протакти́ний m (protaktínij)
• Catalan: protactini (ca) m
• Chinese:

  Mandarin: 鏷／镤 (zh) (pú), 镤 (zh) (pú)

• Cornish: protoactynyum
• Czech: protaktinium (cs)
• Danish: protactinium (da) n
• Dutch: protactinium (nl) n
• Esperanto: protaktinio (eo)
• Estonian: protaktiinium (et)
• Faroese: protaktinium n
• Finnish: protaktinium (fi)
• French: protactinium (fr) m
• Friulian: protoatini
• Galician: protactinio (gl) m
• Georgian: პროტაქტინიუმი (ṗroṭakṭiniumi)
• German: Protactinium (de) n
• Greek: πρωτακτίνιο (el) n (protaktínio)
• Hebrew: פרוטקטיניום (he) (protaktínyum)
• Hindi: प्रैजातु (praijātu)
• Hungarian: protaktínium (hu)
• Icelandic: protaktín (is)
• Irish: prótachtainiam m
• Italian: protoattinio (it) m
• Japanese: プロトアクチニウム (ja) (purotoakuchiniumu)
• Kashubian: protaktin
• Kazakh: протактиний (kk) (protaktinii)
• (deprecated template usage) {{trans-mid}}
• Khmer: ប្រូតាក់ទីញ៉ូម (protaktinhum)
• Korean: 프로트악티늄 (ko) (peuroteuaktinyum)
• Latin: protactinium (la)
• Latvian: protaktīnijs
• Lithuanian: protaktinis (lt)
• Luxembourgish: Protaktinium
• Macedonian: протактиниум m (protaktinium)
• Malay: protaktinium
• Maltese: protaktinjum
• Manx: protaghtinnium
• Mongolian: протактини (protaktini)
• Norwegian: protactinium
• Polish: protaktyn (pl) m
• Portuguese: protactínio (pt) m
• Romanian: protactiniu (ro) n
• Russian: протакти́ний (ru) m (protaktínij)
• Scottish Gaelic: pròtactainiam
• Serbo-Croatian:

  Cyrillic: протоактиниj, протоактиниjум

  Roman: protaktinij (sh), protaktinijum m

• Slovak: protaktínium (sk) n
• Slovene: protaktinij (sl)
• Spanish: protactinio (es) m
• Swedish: protaktinium (sv)
• Tajik: протактиний (protaktiniy)
• Tamil: புரொட்டக்டினியம் (puroṭṭakṭiṉiyam)
• Thai: โพรแทกทิเนียม (proo-tɛ́k-tí-nîiam)
• Turkish: protaktinyum (tr)
• Ukrainian: протакти́ній m (protaktýnij)
• Uzbek: protaktiniy (uz), протактиний (protaktiniy)
• Vietnamese: protactini
• Volapük: protaktinin (vo)
• Welsh: protoactiniwm
• West Frisian: protactinium

---

Danish

Noun

protactinium

1. protactinium

---

Dutch

Chemical element
Pa
Previous: thorium (Th)
Next: uranium (U)

Pronunciation

• Audio:

  (file)

Noun

protactinium n (uncountable)

1. protactinium

---

French

Pronunciation

• IPA^(key): /pʁɔ.tak.ti.njɔm/

Noun

protactinium m (uncountable)

1. protactinium

Further reading

• “protactinium”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

---

Latin

Pronunciation

• (Classical Latin) IPA^(key): /proː.takˈtiː.ni.um/, [proːt̪äkˈt̪iːniʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /pro.takˈti.ni.um/, [prot̪äkˈt̪iːnium]

Noun

prōtactīnium n (genitive prōtactīniī); second declension

1. protactinium

Declension

Second-declension noun (neuter).

Case	Singular	Plural
Nominative	prōtactīnium	prōtactīnia
Genitive	prōtactīniī	prōtactīniōrum
Dative	prōtactīniō	prōtactīniīs
Accusative	prōtactīnium	prōtactīnia
Ablative	prōtactīniō	prōtactīniīs
Vocative	prōtactīnium	prōtactīnia