Nobelium
Lát'ọwọ́ Wikipedia, ìwé ìmọ̀ ọ̀fẹ́
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| Ìfarahàn |
| unknown, probably metallic |
| Àwọn ìní àníkárí |
| Orúkọ, àmì-ìdámọ̀, nọ́mbà |
nobelium, No, 102 |
| Ìpè |
/noʊˈbɛliəm/ noh-BEL-ee-əm;
or /noʊˈbiːliəm/ noh-BEE-lee-əm |
| Ẹ̀ka apilẹ̀sẹ̀ |
actinide |
| Àdìpọ̀, ìgbà, block |
n/a, 7, f |
| Ìwúwo átọ́mù |
[259] g·mol−1 |
| Ìtòjọ ẹ̀lẹ́ktrónì |
[Rn] 5f14 7s2 |
| Àwọn ẹ̀lẹ́ktrónì lórí ọ̀nà kan |
2, 8, 18, 32, 32, 8, 2 (Image) |
| Àwọn ìní aláfójúrí |
| Phase |
solid |
| Atomic properties |
| Oxidation states |
2, 3 |
| Ionization energies |
1st: 641.6 kJ·mol−1 |
| 2nd: 1254.3 kJ·mol−1 |
| 3rd: 2605.1 kJ·mol−1 |
| Miscellanea |
| CAS registry number |
10028-14-5 |
| Most stable isotopes |
| Main article: Isotopes of nobelium |
| iso |
NA |
half-life |
DM |
DE (MeV) |
DP |
| 262No |
syn |
5 ms |
SF |
|
|
| 260No |
syn |
106 ms |
SF |
|
|
| 259No |
syn |
58m |
75% α |
7.69,7.61,7.53.... |
255Fm |
| 25% ε |
|
259Md |
| 258No |
syn |
1.2 ms |
SF |
|
|
| 257No |
syn |
25 s |
α |
8.32,8.22 |
253Fm |
| 256No |
syn |
2.91 s |
99.5% α |
8.45,8.40 |
252Fm |
| 0.5% f |
|
|
| 255No |
syn |
3.1 m |
61% α |
8.12,8.08,7.93 |
251Fm |
| 39% ε |
2.012 |
255Md |
| 254Nom2 |
syn |
198 µs |
γ |
|
254Nom1 |
| 254Nom1 |
syn |
275 ms |
γ |
|
250Nog |
| 254Nog |
syn |
51 s |
|
|
|
| 253Nom |
syn |
43.5 µs |
γ |
|
253Nog |
| 253No |
syn |
1.62 m |
α |
8.14,8.06,8.04,8.01 |
249Fm |
| 252Nom |
syn |
110 ms |
|
|
|
| 252Nog |
syn |
2.44 s |
75% α |
8.42,8.37 |
248Fm |
| 25% SF |
|
|
| 251No |
syn |
0.76 s |
α |
8.62,8.58 |
247Fm |
| 250Nom |
syn |
43 µs |
SF |
|
|
| 250Nog |
syn |
3.7 µs |
SF |
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