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.
Quick Facts Curium, Pípè ...
Curium, 96CmCurium |
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Pípè | /ˈkjʊəriəm/ (KEWR-ee-əm) |
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Ìhànsójú | silvery |
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nọ́mbà ìsújọ | [247] |
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Curium ní orí tábìlì àyè |
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Nọ́mbà átọ̀mù (Z) | 96 |
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Ẹgbẹ́ | group n/a |
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Àyè | àyè 7 |
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Àdìpọ̀ | Àdìpọ̀-f |
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Ẹ̀ka ẹ́límẹ́ntì | Actinide |
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Ìtò ẹ̀lẹ́ktrọ́nù | [Rn] 5f7 6d1 7s2 |
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Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan | 2, 8, 18, 32, 25, 9, 2 |
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Àwọn ohun ìní ara |
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Ìfarahàn at STP | solid |
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Ìgbà ìyọ́ | 1613 K ({{{melting point C}}} °C, {{{melting point F}}} °F) |
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Ígbà ìhó | 3383 K ({{{boiling point C}}} °C, {{{boiling point F}}} °F) |
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Kíki (near r.t.) | 13.51 g/cm3 |
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Heat of fusion | ? 15 kJ/mol |
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pressure
P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
at T (K) |
1788 |
1982 |
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Atomic properties |
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Oxidation states | +3, +4, +5,[1] +6[2] Àdàkọ:Infobox element/symbol-to-oxidation-state/comment |
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Electronegativity | Pauling scale: 1.3 |
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Atomic radius | empirical: 174 pm |
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Covalent radius | 169±3 pm |
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Color lines in a spectral rangeSpectral lines of curium |
Other properties |
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Natural occurrence | synthetic |
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Crystal structure | hexagonal close-packed (hcp) |
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Magnetic ordering | no data |
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CAS Number | 7440-51-9 |
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Main isotopes of curium |
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Isotope |
Abundance |
Half-life (t1/2) |
Decay mode |
Product |
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 |
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Àdàkọ:Category-inline | references |
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