Californium (Hon-ngî: 鉲 kǎ fe̍t-chá 鐦 kāi) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Cf, ngièn-chṳ́ su-muk he 98.
Californium, 98Cf| ngoi-kôn |
|---|
silvery
 |
| Kî-pún sin-sit |
|---|
| Miàng, fù-ho |
Californium, Cf |
|---|
| ngoi-hìn |
silvery |
|---|
| Californium chhai chû-khì-péu ke vi-chi |
|---|
|
|
| ngièn-chṳ́ sì-sú |
98 |
|---|
| ngièn-chṳ́-liòng |
(251) |
|---|
| ngièn-su lui-phe̍t |
actinium-hi |
|---|
| Chhu̍k, fûn-khî |
n/a, f-block |
|---|
| chû-khì |
period 7 |
|---|
| thien-chṳ́ phài-lie̍t |
[Rn] 5f10 7s2 |
|---|
| per shell |
2, 8, 18, 32, 28, 8, 2 |
|---|
| vu̍t-lî sin-chṳt |
|---|
| Siông |
ku-thí |
|---|
| yùng-tiám |
1173 K (900 °C, 1652 °F) |
|---|
| pui-tiám |
1743 K (1470 °C, 2678 °F) (estimation)[3] |
|---|
| Me̍t-thu near Sit-vûn |
15.1 g·cm−3 |
|---|
| Ngièn-chṳ́ sin-chṳt |
|---|
| Yông-fa-su |
2, 3, 4 |
|---|
| Thien-fu-sin |
Pauling scale: 1.3 |
|---|
| Thien-lì-nèn |
1st: 608 kJ·mol−1 |
|---|
| Miscellanea |
|---|
| Chîn-thí keu-chho |
double hexagonal close-packed (dhcp) |
|---|
| Mohs hardness |
3–4 |
|---|
| CAS Registry Number |
7440-71-3 |
|---|
| Le̍k-sú |
|---|
| Hí-miàng |
after California, where it was discovered |
|---|
| Fat-hien |
Lawrence Berkeley National Laboratory (1950) |
|---|
| Chui vún-thin ke thùng-vi-su |
|---|
|
Chú vùn-chông: Californium ke thùng-vi-su |
| iso
|
NA
|
half-life
|
DM
|
DE (MeV)
|
DP
|
| 248Cf
|
syn
|
333.5 d
|
α (100%)
|
6.369
|
244Cm
|
| SF (2.9×10−3%)
|
0.0029
|
–
|
| 249Cf
|
syn
|
351 y
|
α (100%)
|
6.295
|
245Cm
|
| SF (5.0×10−7%)
|
4.4×10−7
|
–
|
| 250Cf
|
syn
|
13.08 y
|
α (99.92%)
|
6.129
|
246Cm
|
| SF (0.08%)
|
0.077
|
–
|
| 251Cf
|
syn
|
898 y
|
α
|
6.172
|
247Cm
|
| 252Cf
|
syn
|
2.645 y
|
α (96.91%)
|
6.217
|
248Cm
|
| SF (3.09%)
|
–
|
–
|
| 253Cf
|
syn
|
17.81 d
|
β− (99.69%)
|
0.29
|
253Es
|
| α (0.31%)
|
6.126
|
249Cm
|
| 254Cf
|
syn
|
60.5 d
|
SF (99.69%)
|
–
|
–
|
| α (0.31%)
|
5.930
|
250Cm
| |
