francium

See also: Francium

English

Chemical element
Fr
Previous: radon (Rn)
Next: radium (Ra)

Etymology

From French francium, from France +‎ -ium (after the native country of Marguerite Perey).

Pronunciation

• (UK) IPA^(key): /ˈfɹansɪəm/, /ˈfɹɑːnsɪəm/
• (US) enPR: frăn'sēəm, IPA^(key): /ˈfɹænsi.əm/

• Audio (Southern England):

  (file)

• Audio (General American):

  (file)

Noun

francium (usually uncountable, plural franciums)

1. The chemical element (symbol Fr) with an atomic number of 87. It is an intensely radioactive alkali metal that is not found in nature.
   • 2003, Bill Bryson, A Short History of Nearly Everything, BCA, page 221:

     The most elusive element of all, however, appears to be francium, which is so rare that it is thought that our entire planet may contain, at any given moment, fewer than twenty francium atoms.

2. (countable) A single atom of this element.
   • 1999, Peter J. Krieger, Understanding Chemical Principles: A Learning Companion, page 56:

     Notice that franciums are balanced without even thinking in moles, atoms, or whatever.

   • 2007, Carl J. Gross, Witold Nazarewicz, Krzysztof P. Rykaczewski, The 4th International Conference on Exotic Nuclei and Atomic Masses, page 180:

     (a) Radons and poloniums are compared, (b) poloniums and astatines are compared and (c) radons and franciums are compared.

Synonyms

• actinium-K (obsolete)
• virginium (obsolete)

Derived terms

• eka-francium

Translations

chemical element

• Afrikaans: frankium (af)
• Albanian: francium
• Arabic: فَرَنْسِيُوم m (faransiyum)
• Armenian: ֆրանսիում (fransium)
• Asturian: franciu (ast) m
• Basque: frantzioa
• Belarusian: фра́нцый m (fráncyj)
• Breton: frañsiom
• Bulgarian: фра́нций m (fráncij)
• Catalan: franci (ca) m
• Chinese:

  Mandarin: (Mainland China, Hong Kong) 鈁 / 钫 (zh) (fāng), (Taiwan) 鍅 (zh) (fǎ)

• Cornish: frankyum
• Czech: francium (cs) n
• Danish: francium (da)
• Dutch: francium (nl) n
• Esperanto: franciumo (eo)
• Estonian: frantsium (et)
• Faroese: fransium n
• Finnish: frankium (fi)
• French: francium (fr) m
• Friulian: franci
• Galician: francio (gl) m
• Georgian: ფრანციუმი (pranciumi)
• German: Francium (de) n
• Greek: φράγκιο (el) n (frágkio)
• Hebrew: פרנציום (he) (frantsiyum)
• Hindi: क्षुद्रातु (kṣudrātu)
• Hungarian: francium (hu)
• Icelandic: fransín (is)
• Irish: frainciam
• Italian: francio (it) m
• Japanese: フランシウム (ja) (furanshiumu)
• Kashubian: frãs
• Kazakh: франций (kk) (fransii)
• Khmer: ហ្វ្រង់ស្យូម (frɑngsyoum)
• Korean: 프랑슘 (ko) (peurangsyum), 악티늄케이 (aktinyumkei)
• Kurdish:

  Northern Kurdish: fransiyûm (ku)

• Latvian: francijs (lv)
• Lithuanian: francis (lt)
• Luxembourgish: Francium n
• Macedonian: франциум m (francium)
• Malay: fransium
• Maltese: fransjum
• Manx: frankium
• Moksha: франци (franci)
• Mongolian: франци (franci)
• Norwegian: francium
• Occitan: franci m
• Ossetian: франций (francij)
• Persian: فرانسیم (ferânsiyom)
• Polish: frans (pl) m
• Portuguese: frâncio (pt) m
• Romanian: franciu (ro) n
• Russian: фра́нций (ru) m (fráncij)
• Scottish Gaelic: frainciam
• Serbo-Croatian:

  Cyrillic: франциј m, францијум m

  Roman: francij (sh) m, francijum m

• Slovak: francium (sk) n
• Slovene: fráncij (sl)
• Spanish: francio (es) m
• Swahili: fransi
• Swedish: francium (sv)
• Tajik: франсий (fransiy)
• Tamil: வெடியிதள் (veṭiyitaḷ), பிரன்சியம் (piraṉciyam)
• Thai: แฟรนเซียม (frɛn-sîiam)
• Turkish: fransiyum (tr)
• Ukrainian: фра́нцій (uk) m (fráncij)
• Uzbek: франций, frantsiy
• Vietnamese: franxi
• Volapük: fransin
• Welsh: ffransiwm
• West Frisian: francium n

References

• Francium on the British Royal Society of Chemistry's online periodic table

Czech

Pronunciation

• IPA^(key): [ˈfrant͡sɪjum]

Noun

francium n

1. francium

Declension

Declension of francium (semisoft neuter foreign)

	singular	plural
nominative	francium	francia
genitive	francia	francií
dative	franciu	franciím
accusative	francium	francia
vocative	francium	francia
locative	franciu	franciích
instrumental	franciem	francii

Danish

Chemical element
Fr
Previous: radon (Rn)
Next: radium (Ra)

Etymology

From Medieval Latin Francia +‎ -ium.

Noun

francium n (singular definite franciummet, not used in plural form)

1. francium

Declension

Declension of francium

neuter gender	singular
	indefinite	definite
nominative	francium	franciummet
genitive	franciums	franciummets

References

• “francium” in Den Danske Ordbog

Dutch

Chemical element
Fr
Previous: radon (Rn)
Next: radium (Ra)

Pronunciation

• Audio:

  (file)

Noun

francium n (uncountable)

1. francium

French

Pronunciation

• IPA^(key): /fʁɑ̃.sjɔm/

Noun

francium m (uncountable)

1. francium

Further reading

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

Hungarian

Chemical element
Fr
Previous: radon (Rn)
Next: rádium (Ra)

Pronunciation

• IPA^(key): [ˈfrɒnt͡sijum]
• Hyphenation: fran‧ci‧um
• Rhymes: -um

Noun

francium (usually uncountable, plural franciumok)

1. francium (chemical element)

Declension

Inflection (stem in -o-, back harmony)

	singular	plural
nominative	francium	franciumok
accusative	franciumot	franciumokat
dative	franciumnak	franciumoknak
instrumental	franciummal	franciumokkal
causal-final	franciumért	franciumokért
translative	franciummá	franciumokká
terminative	franciumig	franciumokig
essive-formal	franciumként	franciumokként
essive-modal	—	—
inessive	franciumban	franciumokban
superessive	franciumon	franciumokon
adessive	franciumnál	franciumoknál
illative	franciumba	franciumokba
sublative	franciumra	franciumokra
allative	franciumhoz	franciumokhoz
elative	franciumból	franciumokból
delative	franciumról	franciumokról
ablative	franciumtól	franciumoktól
non-attributive possessive – singular	franciumé	franciumoké
non-attributive possessive – plural	franciuméi	franciumokéi

Possessive forms of francium

possessor	single possession	multiple possessions
1st person sing.	franciumom	franciumaim
2nd person sing.	franciumod	franciumaid
3rd person sing.	franciuma	franciumai
1st person plural	franciumunk	franciumaink
2nd person plural	franciumotok	franciumaitok
3rd person plural	franciumuk	franciumaik

Latin

Pronunciation

• (Classical Latin) IPA^(key): [ˈfraŋ.ki.ũː]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈfran̠ʲ.t͡ʃi.um]

Noun

francium n (genitive franciī); second declension

1. francium

Declension

Second-declension noun (neuter).

	singular	plural
nominative	francium	francia
genitive	franciī	franciōrum
dative	franciō	franciīs
accusative	francium	francia
ablative	franciō	franciīs
vocative	francium	francia

Slovak

Chemical element
Fr
Previous: radón (Rn)
Next: rádium (Ra)

Pronunciation

• IPA^(key): /ˈfrant͡sɪjʊm/

• Audio:

  (file)

Noun

francium n

1. francium (element)

Declension

Declension of francium
(pattern mesto, of Latin origin ending with -um)

	singular
nominative	francium
genitive	francia
dative	franciu
accusative	francium
locative	francie
instrumental	franciom

Further reading

• “francium”, in Slovníkový portál Jazykovedného ústavu Ľ. Štúra SAV [Dictionary portal of the Ľ. Štúr Institute of Linguistics, Slovak Academy of Science] (in Slovak), https://slovnik.juls.savba.sk, 2003–2025

Swedish

Chemical element
Fr
Previous: radon (Rn)
Next: radium (Ra)

Noun

francium n (uncountable)

1. francium

Declension

Declension of francium

		nominative	genitive
singular	indefinite	francium	franciums
	definite	franciumet	franciumets
plural	indefinite	—	—
	definite	—	—

Declension of francium

		nominative	genitive
singular	indefinite	francium	franciums
	definite	franciet	franciets
plural	indefinite	—	—
	definite	—	—

Declension of francium

		nominative	genitive
singular	indefinite	francium	franciums
	definite	francium	franciums
plural	indefinite	—	—
	definite	—	—

References

• francium in Svenska Akademiens ordlista (SAOL)
• Svensk MeSH