Нобелий

Нобелий
Менделевий ← Нобелий → Лоуренсий
Yb
↑
No
↓
(Uph)
Периодична система
Общи данни
Име, символ, ZНобелий, No, 102
Група, период, блок–, 7, f
Химическа серияактинид
Електронна конфигурация[Rn] 5f14 7s2
e- на енергийно ниво2, 8, 18, 32, 32, 8, 2
CAS номер10028-14-5
Свойства на атома
Атомна маса[259] u
Оксид3, 2[2]
Електроотрицателност
(Скала на Полинг)		1,3 (вероятна)[3]
Йонизационна енергияI: 642 kJ/mol
II: 1254 kJ/mol
III: 2643 kJ/mol
IV: 3956 kJ/mol
(приблизителни)
Физични свойства
Агрегатно състояниетвърдо вещество (вероятно)[4]
Кристална структура (вероятна)[1]кубична стенноцентрирана
Плътност9940 kg/m3 (вероятна)[1]
Температура на топене1100 K (827 °C) (вероятна)[4]
История
Наименуванна Алфред Нобел
ОткритиеОИЯИ[5] (1966 г.)
Най-дълготрайни изотопи
Изотоп ИР ПП ТР ПР
253No синт. 1,6 мин. α 249Fm
β+ 253Md
254No синт. 51 сек. α 250Fm
β+ 254Md
255No синт. 3,1 мин. α 251Fm
β+ 255Md
257No синт. 25 сек. α 253Fm
β+ 257Md
259No синт. 58 мин. α 255Fm
β+ 259Md
СД разни
Нобелий в Общомедия

Нобелият е химичен, радиоактивен елемент със символ No, атомен номер 102 и принадлежащ към групата на актинидите. Името идва от шведския учен Алфред Нобел. Открит е от Алберт Гиорсо през 1966 г.

Източници

  1. ↑ а б Fournier, Jean-Marc. Bonding and the electronic structure of the actinide metals // Journal of Physics and Chemistry of Solids 37 (2). 1976. DOI:10.1016/0022-3697(76)90167-0. p. 235 – 244. (на английски)
  2. ↑ Silva, Robert J. Chapter 13. Fermium, Mendelevium, Nobelium, and Lawrencium // The Chemistry of the Actinide and Transactinide Elements. Netherlands, Springer, 2011. ISBN 978-94-007-0210-3. DOI:10.1007/978-94-007-0211-0_13. p. 1636 – 1637. (на английски)
  3. ↑ Lange's Handbook of Chemistry. 15. McGraw-Hill, 1999. (на английски)
  4. ↑ а б CRC Handbook of Chemistry and Physics. 84th. Boca Raton (FL), CRC Press, 2003. ISBN 0-8493-0484-9. (на английски)
  5. ↑ Barber, Robert C. et al. Discovery of the transfermium elements. Part II: Introduction to discovery profiles. Part III: Discovery profiles of the transfermium elements // Pure and Applied Chemistry 65 (8). 1993. DOI:10.1351/pac199365081757. p. 1757. (на английски)
Тази статия за химичен елемент все още е мъниче. Помогнете на Уикипедия, като я редактирате и разширите.

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