Cf

i-Californium

Ingxenye 98 · 251.07959 u

I-Actinide f-block Isikhathi 7 Iqinile ku-RT I-Radioactive t½ 898 years Isingeniso I-Wikipedia →

I-Californium iyindawo enamandla ye-neutron esetshenziswa ekuqaleni kwe-nuclear reactor kanye nokwelashwa kwe-cancer.

Izici Zobuchopho

I-Atom Mass251.07959 u
Ubukhulu15.1 g/cm³
Izinga lokuncibilika1173.0 K
Izinga lokubopha1743.0 K
UkubonakalaIsibhakabhaka esimnyama
Isimo ku-Room TempIqinile

Izici ze-chemical

Electronegativity1.3 (I-Pauling)
I-Ionization Energy608.0 kJ/mol
I-electron affinity-97.31 kJ/mol
I-Oxidation States+2, +3, +4

Izici ze-Atom

I-electron[Rn] 5f10 7s2
I-Atom Radius169.0 pm
I-Van der Waals Radius245.0 pm

Ukuqapha

Itholakele nguStanley G. Thompson, Kenneth Street Jr., Albert Ghiorso, Glenn T. Seaborg
Unyaka wokuqamba1950
Indawoi-California
Ibizwa ngeIbizwa nge-California ne-University of California

Malunga i-Californium

Californium-252 spontaneously fissions, emitting useful neutrons. Only about 500 micrograms are produced yeminyaka e-US. It is one of the most expensive substances on Earth.

Izisebenziso

Ukuqashwa kwe-nuclear reactor, ama-moisture gauges, ukuqoqwa kwe-oil well, kanye nokwelashwa kwe-cancer.

Iqiniso elijabulisayo

Californium-252 izindleko cishe $ 27 million ngegramu, nakuba kuphela microgram inani ngokuvamile kudingeka.

Isibonisi

Inani le-mass Ubukhulu Isikhathi esingu-half-life Iqinile
249 - 351 years Akukho
251 - 898 years Akukho
252 - 2.645 years Akukho

I-electron

[Rn] 5f10 7s2

Qhathanisa

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