Francium (Hon-ngî: 鍅 fǎ fe̍t-chá 鈁 fānɡ) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Fr, ngièn-chṳ́ su-muk he 87.
Francium, 87Fr| Kî-pún sin-sit |
|---|
| Miàng, fù-ho |
Francium, Fr |
|---|
| Francium chhai chû-khì-péu ke vi-chi |
|---|
|
|
| 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-chho |
body-centered cubic (bcc)
(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 |
|
|
- ↑ ISOLDE Collaboration, J. Phys. B 23, 3511 (1990) (PDF online)
