Californium

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
Dy ↑ Cf ↓ (Upn) berkelium ← Californium → einsteinium
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)
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

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.