కాలిఫోర్నియం, 00 Cf Pronunciation (KAL-ə -FOR-nee -əm ) Appearance silvery Mass number [251]
Group మూస:Infobox element/symbol-to-group/format Period period 7 Block f-block Electron configuration [Rn ] 5f10 7s2 Electrons per shell 2, 8, 18, 32, 28, 8, 2 Phase at STP solid Melting point 1173 K (900 °C, 1652 °F) Boiling point (estimation) 1743[3] K (1470 °C, 2678 °F) Density (near r.t. ) 15.1 g/cm3 Oxidation state s+2, +3 , +4, +5[4] [5] Electronegativity Pauling scale: 1.3 Spectral line s of కాలిఫోర్నియంNatural occurrence synthetic Crystal structure simple hexagonal Mohs hardness 3–4 CAS Number 7440-71-3 Naming after California , where it was discovered Discovery Lawrence Berkeley National Laboratory (1950) Template:infobox కాలిఫోర్నియం isotopes does not exist Category: కాలిఫోర్నియం | references
References
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↑ Greenwood, Norman N. ; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann . p. 1265. ISBN 0080379419 .
↑ Kovács, Attila; Dau, Phuong D.; Marçalo, Joaquim; Gibson, John K. (2018). "Pentavalent Curium, Berkelium, and Californium in Nitrate Complexes: Extending Actinide Chemistry and Oxidation States". Inorg. Chem . 57 (15). American Chemical Society: 9453–9467. doi :10.1021/acs.inorgchem.8b01450 . OSTI 1631597 . PMID 30040397 . S2CID 51717837 .
↑ NNDC contributors (2008). Sonzogni, Alejandro A. (Database Manager) (ed.). "Chart of Nuclides" . National Nuclear Data Center, Brookhaven National Laboratory. Retrieved 2010-03-01 .