Kùríọ̀m

Lát'ọwọ́ Wikipedia, ìwé ìmọ̀ ọ̀fẹ́
(Àtúnjúwe láti Curium)
Lọ sí: atọ́ka, àwárí
Curium
96Cm
Gd

Cm

(Uqh)
americiumcuriumberkelium
Ìhànsójú
silvery
Àwọn ìdámọ́ wíwọ́pọ̀
Orúkọ, àmì-ìdámọ́, nọ́mbà curium, Cm, 96
Ìpèlóhùn /ˈkjʊəriəm/
KEWR-ee-əm
Ẹ̀ka ẹ́límẹ̀nti actinide
Ẹgbẹ́, àsìkò, àdìpò n/a7, f
Ìwúwo átọ́mù (247)
Ìtòléra ẹ̀lẹ́ktrónì [Rn] 5f7 6d1 7s2
2, 8, 18, 32, 25, 9, 2
Physical properties
Phase solid
Density (near r.t.) 13.51 g·cm−3
Melting point 1613 K
Boiling point 3383 K
Heat of fusion  ? 15 kJ·mol−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1788 1982        
Atomic properties
Oxidation states 4, 3 (amphoteric oxide)
Electronegativity 1.3 (Pauling scale)
Ionization energies 1st: 581 kJ·mol−1
Atomic radius 174 pm
Covalent radius 169±3 pm
Miscellanea
Crystal structure hexagonal close-packed
Curium has a hexagonal close-packed crystal structure
Magnetic ordering no data
CAS registry number 7440-51-9
Àwọn ísótòpù dídúró jùlọ
Main article: Àwọn ísótòpù curium
iso NA half-life DM DE (MeV) DP
242Cm syn 160 days SF - -
α 6.1 238Pu
243Cm syn 29.1 y α 6.169 239Pu
ε 0.009 243Am
SF - -
244Cm syn 18.1 y SF - -
α 5.902 240Pu
245Cm syn 8500 y SF - -
α 5.623 241Pu
246Cm syn 4730 y α 5.475 242Pu
SF - -
247Cm syn 1.56×107 y α 5.353 243Pu
248Cm syn 3.40×105 y α 5.162 244Pu
SF - -
250Cm syn 9000 y SF - -
α 5.169 246Pu
β 0.037 250Bk
· r

Kùríọ̀m tabi Curium je apilese kemika alasopapo to ni ami-idamo Cm ati nomba atomu 96. Gege bi apilese teyinuraniom onide alagbararadio ti eseese aktinidi, kuriom nje mimuwaye nipa didigbolu plutonium pelu awon igbonwo alpha (awon ioni helium). O je sisoloruko fun Marie Skłodowska-Curie ati oko re Pierre.


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