کاليفورنيوم

د ويکيپېډيا، وړیا پوهنغونډ له خوا
(له Californium نه مخ گرځېدلی)
و اصلی برخی ته ورشی د پلټنې ځای ته ورټوپ کړی
Californium,  98Cf
A very small disc of silvery metal, magnified to show its metallic texture
عمومي خواص
Pronunciation /ˌkælɪˈfɔːrniəm/
KAL-I-FOR-NEE-əm
Appearance silvery
Californium په دوراني جدول کې
Hydrogen (diatomic nonmetal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal)
Oxygen (diatomic nonmetal)
Fluorine (diatomic nonmetal)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (polyatomic nonmetal)
Sulfur (polyatomic nonmetal)
Chlorine (diatomic nonmetal)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (polyatomic nonmetal)
Bromine (diatomic nonmetal)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (diatomic nonmetal)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanide)
Cerium (lanthanide)
Praseodymium (lanthanide)
Neodymium (lanthanide)
Promethium (lanthanide)
Samarium (lanthanide)
Europium (lanthanide)
Gadolinium (lanthanide)
Terbium (lanthanide)
Dysprosium (lanthanide)
Holmium (lanthanide)
Erbium (lanthanide)
Thulium (lanthanide)
Ytterbium (lanthanide)
Lutetium (lanthanide)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (metalloid)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinide)
Thorium (actinide)
Protactinium (actinide)
Uranium (actinide)
Neptunium (actinide)
Plutonium (actinide)
Americium (actinide)
Curium (actinide)
Berkelium (actinide)
Californium (actinide)
Einsteinium (actinide)
Fermium (actinide)
Mendelevium (actinide)
Nobelium (actinide)
Lawrencium (actinide)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Nihonium (unknown chemical properties)
Flerovium (unknown chemical properties)
Moscovium (unknown chemical properties)
Livermorium (unknown chemical properties)
Tennessine (unknown chemical properties)
Oganesson (unknown chemical properties)
Dy

Cf

(Upb)
berkeliumcaliforniumeinsteinium
اټومي شمیره (Z) 98
گروپ, پیریود group n/a, period 7
بلاک f-block
Element category   actinide
Mass number 251[۱] (most stable isotope)
Electron configuration [Rn] 5f10 7s2[۲]
Electrons per shell
2, 8, 18, 32, 28, 8, 2
فزیکي خواص
حالت (at STP) جامد
دويلې کيدو ټکى 1173 K ​(900 °C, ​1652 °F)[۱]
يشنا ټکی 1743 K ​(1470 °C, ​2678 °F) (estimation)[۳]
Density near r.t. 15.1 g/cm3[۱]
اټومي خواص
Oxidation states 2, 3, 4[۴]
Electronegativity Pauling scale: 1.3[۵]
Ionization energies
  • 1st: 608 kJ/mol[۶]
Miscellanea
Crystal structuredouble hexagonal close-packed (dhcp)
Double hexagonal close packed crystal structure for californium
Mohs hardness 3–4[۷]
CAS Number 7440-71-3[۱]
History
Naming after California, where it was discovered
Discovery Lawrence Berkeley National Laboratory (1950)
Main isotopes of californium[۸][۹]
آيسو­ټوپ Abun­dance نیم ژوند (t1/2) Decay mode Pro­duct

کينډۍ:Infobox element/isotopes decay2 کينډۍ:Infobox element/isotopes decay2 کينډۍ:Infobox element/isotopes decay2

251Cf syn 898 y α 247Cm

کينډۍ:Infobox element/isotopes decay2 کينډۍ:Infobox element/isotopes decay2 کينډۍ:Infobox element/isotopes decay2

| references | in Wikidata

کاليفورنيوم (په انگرېزي: Californium) له کیمیاوي عناصرو څخه یو دی چې په تناوبي جدول کې د Cf سمبول او ۹۸ اتمي شمېرې په وسیله ښودل شوی دی.

مشخصات[سمول]

تاریخچه[سمول]

مرکبات[سمول]

د استعمال ځایونه[سمول]

سرچينې[سمول]

  1. ۱٫۰ ۱٫۱ ۱٫۲ ۱٫۳ CRC 2006، ص. 4.56.
  2. CRC 2006، ص. 1.14.
  3. Joseph Jacob Katz; Glenn Theodore Seaborg; Lester R. Morss (1986). The Chemistry of the actinide elements. Chapman and Hall. p. 1038. ISBN 9780412273704. http://books.google.com/books?id=UuPvAAAAMAAJ. Retrieved 11 July 2011. 
  4. Greenwood او Earnshaw 1997، ص. 1265.
  5. Emsley 1998، ص. 50.
  6. CRC 2006، ص. 10.204.
  7. CRC 1991، ص. 254.
  8. CRC 2006، ص. 11.196.
  9. NNDC contributors (په 2008 کې). Chart of Nuclides. National Nuclear Data Center, Brookhaven National Laboratory

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