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Актиниум

89 радиумактиниумториум
La

Ac

Ute
Актиниум in the periodic table of the elements
Актиниум in the periodic table of the elements
Бүтүн билиилэрэ
Аата, бэлиэтэ, нүөмэрэ актиниум, Ac, 89
Элемент категориятаактиноид
Бөлөҕө, периода, блога 3, 7, f
Өҥөкөмүстүҥү
Атом маассата (227) g·mol−1
Электрон конфигурацията [Rn] 6d1 7s2
Электрон хахха 2, 8, 18, 32, 18, 9, 2 (Image)
Физик характеристикалара
Фазатаsolid
Чиҥэ10 g·cm−3
Ууллуу кэрдииhэ(circa) 1323 K
(1050 °C, 1922 °F)
Оргуйуу кэрдииhэ3471 K
(3198 °C, 5788 °F)
Ууллуу итиитэ14 kJ·mol−1
Уостуу итиитэ400 kJ·mol−1
Итиини иҥэримтиэтэ(25 °C) 27.2 J·mol−1·K−1
Атом характеристикалара
Кристал тутулаface-centered cubic
Аhыйыы нүөмэрэ3
(neutral oxide)
Электромэлдьэhиитэ1.1 (Pauling scale)
Ионизация энергиялара 1st: 499 kJ·mol−1
2nd: 1170 kJ·mol−1
Ковалент радиус215 pm
Атын билиилэрэ
Магнетизмаno data
Итиини ыытыы(300 K) 12 W·m−1·K−1
CAS регистрация нүөмэрэ7440-34-8
Ордук бигэ изотоптара
Сүрүн ыстатыйа: актиниум изотоптара
изо ИТ Аҥар үрэллиитэ РҮ ҮЭ (MeV) ҮО
225Ac syn 10 хонук α 5.935 221Fr
226Ac syn 29.37 чаас β 1.117 226Th
ε 0.640 226Ra
α 5.536 222Fr
227Ac 100% 21.773 сыл β 0.045 227Th
α 5.042 223Fr
Халыып: КөрүүЫрытыыУларыт

Актиниум диэн радиоактив химия элемена. Бэлиэтэ Ac уонна атом нүөмэрэ 89. 1899 c. арыллыбыта.

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Актиниум
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