Californyo

Ang californyo (Iningles californium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Cf ug kaiphan nga atomik 98. Ang californyo mao ang aktinido.

Californium
98Cf
Dy ↑ Cf ↓ (Upn) Periodic table berkelium ← californium → einsteinium
Panagway
silvery
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan	californium, Cf, 98
Paglitok	/ˌkælᵻˈfɔːrniəm/ [[Help:Pronunciation respelling key|Plantilya:Smallcaps all-i-Plantilya:Smallcaps all-nee-əm]]
Kategoriyang elemento	aktinido
Group, period, block	[[group {{{group}}} element|{{{group}}}]], 7, f
Gibug-aton sa atomo	(251)
Kontorno sa elektron	[Rn] 5f10 7s2 2, 8, 18, 32, 28, 8, 2 Electron shells of californium (2, 8, 18, 32, 28, 8, 2)
History
Pagkadiskobre	Lawrence Berkeley National Laboratory (1950)
Physical properties
Phase	magahi
Density (near r.t.)	15.1 g·cm−3
Melting point	1173 K, 900 °C, 1652 °F
Boiling point	1743 K, 1470 °C, 2678 (estimation) °F
Atomic properties
Oxidation states	2, 3, 4
Electronegativity	1.3 (Pauling scale)
Ionization energies	1st: 608 kJ·mol−1
Miscellanea
Crystal structure	simple hexagonal
Mohs hardness	3–4
CAS registry number	7440-71-3
Most stable isotopes
Main article: Isotopes of californium
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 trace 351 y α (100%) 6.295 245Cm SF (5.0×10−7%) 4.4×10−7 – 250Cf trace 13.08 y α (99.92%) 6.129 246Cm SF (0.08%) 0.077 – 251Cf trace 898 y α 6.172 247Cm 252Cf trace 2.645 y α (96.91%) 6.217 248Cm SF (3.09%) – – 253Cf trace 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 Isotope references:

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