Bẹ́rkẹ́líọ̀m

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Berkelium
97Bk
Tb

Bk

(Uqs)
curiumberkeliumcalifornium
Ìhànsójú
silvery
Àwọn ìdámọ́ wíwọ́pọ̀
Orúkọ, àmì-ìdámọ́, nọ́mbà berkelium, Bk, 97
Ẹ̀ka ẹ́límẹ̀nti actinide
Ẹgbẹ́, àsìkò, àdìpò n/a7, f
Ìwúwo átọ́mù (247)
Ìtòléra ẹ̀lẹ́ktrónì [Rn] 5f9 7s2
2, 8, 18, 32, 27, 8, 2
Physical properties
Phase solid
Density (near r.t.) (alpha) 14.78 g·cm−3
Density (near r.t.) (beta) 13.25 g·cm−3
Melting point (beta) 1259 K, 986 °C, 1807 °F
Atomic properties
Oxidation states 3, 4
Electronegativity 1.3 (Pauling scale)
Ionization energies 1st: 601 kJ·mol−1
Atomic radius 170 pm
Miscellanea
Crystal structure hexagonal close-packed
Berkelium has a hexagonal close-packed crystal structure
Magnetic ordering no data
Thermal conductivity 10 W·m−1·K−1
CAS registry number 7440-40-6
Àwọn ísótòpù dídúró jùlọ
Main article: Àwọn ísótòpù berkelium
iso NA half-life DM DE (MeV) DP
245Bk syn 4.94 d ε 0.810 245Cm
α 6.455 241Am
246Bk syn 1.8 d α 6.070 242Am
ε 1.350 246Cm
247Bk syn 1380 y α 5.889 243Am
248Bk syn >9 y α 5.803 244Am
249Bk syn 330 d α 5.526 245Am
SF - -
β 0.125 249Cf
· r

Bẹ́rkẹ́líọ̀m tabi Berkelium je apilese alasopapo to ni ami-idamo Bk ati nomba atomu 97. Gege bi apilese onide alagbararadio ninu eseese aktinidi, berkelium koko je sisopapo nipa didigbolu americium pelu awon igbonwo alpha (awon ioni helium), o si je sisoloruko fun Yunifasiti Kalifornia ni Berkeley. Berkelium ni apilese teyinuraniom karun to je sisopapo.


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