Francium

Chhiùng Wikipedia lòi
Francium,  87Fr
Kî-pún sin-sit
Miàng, fù-ho Francium, Fr
Francium chhai chû-khì-péu ke vi-chi
Khiâng (sûng-ngièn-chṳ́ fî-kîm-su̍k)
Hoi (hî-yù hi-thí)
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Than (tô-ngièn-chṳ́ fî-kîm-su̍k)
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Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
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Nihonium (unknown chemical properties)
Flerovium (heu-ko-thu kîm-su̍k)
Moscovium (unknown chemical properties)
Livermorium (unknown chemical properties)
Tennessine (unknown chemical properties)
Oganesson (unknown chemical properties)
Cs

Fr

(Uue)
radonFranciumradium
ngièn-chṳ́ sì-sú 87
ngièn-chṳ́-liòng (223)
ngièn-su lui-phe̍t   kán-kîm-su̍k
Chhu̍k, fûn-khî 1 chhu̍k, s-block
chû-khì period 7
thien-chṳ́ phài-lie̍t [Rn] 7s1
per shell 2, 8, 18, 32, 18, 8, 1
vu̍t-lî sin-chṳt
Siông ku-thí presumably
yùng-tiám ? 300 K ​(27 °C, ​80 °F)
pui-tiám ? 950 K ​(677 °C, ​1250 °F)
Me̍t-thu near Sit-vûn 1.87 g·cm−3 (extrapolated)
Yùng-fa-ngie̍t ca. 2 kJ·mol−1
Chîn-fat-ngie̍t ca. 65 kJ·mol−1
chîn-hi-ap (extrapolated)
P (Pa) 1 10 100 1 k 10 k 100 k
chhai T (K) 404 454 519 608 738 946
Ngièn-chṳ́ sin-chṳt
Yông-fa-su +1 ​(a strongly basic oxide)
Thien-fu-sin Pauling scale: 0.7
Thien-lì-nèn 1st: 393[1] kJ·mol−1
Khiung-ka pan-kang 260 pm (extrapolated)
Van der Waals pan-kang 348 pm (extrapolated)
Miscellanea
Chîn-thí keu-chhobody-centered cubic (bcc)
Body-centered cubic crystal structure for Francium

(extrapolated)
Ngie̍t-chhòn-thô-li̍t 15 W·m−1·K−1 (extrapolated)
Thien-chú-li̍t 3 µΩ·m (calculated)
Chhṳ̀-sin Paramagnetic
CAS Registry Number 7440-73-5
Le̍k-sú
Hí-miàng after France, homeland of the discoverer
Hoat-kiàn kap siōng chá ê tông-ūi-sò͘ Marguerite Perey (1939)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Francium ke thùng-vi-su
iso NA half-life DM DE (MeV) DP
221Fr trace 4.8 min α 6.457 217At
222Fr syn 14.2 min β 2.033 222Ra
223Fr trace 22.00 min β 1.149 223Ra
α 5.430 219At

Francium (Hon-ngî: fe̍t-chá fānɡ) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Fr, ngièn-chṳ́ su-muk he 87.

Chhâm-kháu chṳ̂-liau[phiên-siá | kói ngièn-sṳ́-mâ]

  1. ISOLDE Collaboration, J. Phys. B 23, 3511 (1990) (PDF online)