Cf

Kaliforni

Elementị 98 · 251.07959 u

Aktinidi f-block Oge 7 Òtù na RT Radioactive t½ 898 years Sịntịtị Wikipedia →

Californium bụ a powerfull neutron isi iyi e ji eme ihe na nuclear reactor mmepe na ọgwụgwọ cancer.

Nkarachọ

Atomic mass251.07959 u
Mgbatị15.1 g/cm³
Mmalite1173.0 K
Nhazi1743.0 K
NhaziSilvery metallic
Oge n'ime ụlọÒtù

Ihenhọrọ ndị ahụ

Elektrọn1.3 (Pauling)
Nhazi608.0 kJ/mol
Elektrọn-97.31 kJ/mol
Oxygenation state+2, +3, +4

Ihenhọrọ nke atom

Nhazi[Rn] 5f10 7s2
Atomic Radius169.0 pm
Van der Waals Radius245.0 pm

Ndesịta ozi ndị ahụ

E chọpụtara site naStanley G. Thompson, Kenneth Street Jr., Albert Ghiorso, Glenn T. Seaborg
Ụbọchị emeredịkachọrọ1950
EbeBerkeley, California, USA
Aha mgbe ahụEjiri aha ya kpọọ mgbe California na University of California

Báà Kaliforni

Californium-252 spontaneously fission, emitting useful neutrons. Only about 500 micrograms are produced annually in the US. It's one of the most expensive substances on Earth.

Usoroiheomume

N'ihi na ọ bụ ihe dị mkpa na-eme ka a na-eme ka ọ dị mma.

Eziokwu dị ụtọ

Californium-252 dị ọnụ ala n'ihe dị ka $27 nde kwa gram, ọ bụ ezie na ọ bụ naanị micrograms nke dị mkpa.

Isotopes

Nkebi Afọ́ọ̀ltụ̀ Half-Life Òtù
249 - 351 years Ọ bụghị
251 - 898 years Ọ bụghị
252 - 2.645 years Ọ bụghị

Nhazi

[Rn] 5f10 7s2

Tụnyere

Banye na ndị ọzọ

Mepee tulọ ntụgharị
← Berkelium N'ihu táàbụ̀ Einsteinium →