آکټېنيوم

(له Actinium نه مخ گرځېدلی)

آکټېنيوم (په انگرېزي: Actinium) له کیمیاوي عناصرو څخه یو دی چې په تناوبي جدول کې د Ac سمبول او ۸۹ اتمي شمېرې په وسیله ښودل شوی دی.

Actinium,  89Ac
Actinium.jpg
عمومي خواص
Pronunciation /ækˈtɪniəm/
ak-TIN-nee-əm
Appearance silvery-white, glowing with an eerie blue light;[۱] sometimes with a golden cast[۲]
Actinium 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)
La

Ac

(Ubu)
radiumactiniumthorium
اټومي شمیره (Z) 89
گروپ, پیریود group 3, period 7
بلاک d-block
Element category   actinide, sometimes considered a transition metal
Mass number 227 (most stable isotope)
Electron configuration [Rn] 6d1 7s2
Electrons per shell
2, 8, 18, 32, 18, 9, 2
فزیکي خواص
حالت (at STP) جامد
دويلې کيدو ټکى 1500 K ​(1227 °C, ​2240 °F) (estimated)[۲]
يشنا ټکی 3500±300 K ​(3200±300 °C, ​5800±500 °F) (extrapolated)[۲]
Density near r.t. 10 g/cm3
Heat of fusion 14 kJ/mol
Heat of vaporization 400 kJ/mol
Molar heat capacity 27.2 J/(mol·K)
اټومي خواص
Oxidation states 3, 2 ​(a neutral oxide)
Electronegativity Pauling scale: 1.1
Ionization energies
  • 1st: 499 kJ/mol
  • 2nd: 1170 kJ/mol
  • 3rd: 1900 kJ/mol
  • (more)
Covalent radius 215 pm
Miscellanea
Crystal structureface-centered cubic (fcc)
Face-centered cubic crystal structure for actinium
د تودوخې تېرېدنه 12 W/(m·K)
CAS Number 7440-34-8
History
Discovery and first isolation Friedrich Oskar Giesel (1902)
Named by André-Louis Debierne (1899)
Main isotopes of actinium
آيسو­ټوپ Abun­dance نیم ژوند (t1/2) Decay mode Pro­duct
225Ac trace 10 d α 221Fr

کينډۍ:Infobox element/isotopes decay3 کينډۍ:Infobox element/isotopes decay2

| references | in Wikidata

مشخصاتسمول

تاریخچهسمول

مرکباتسمول

د استعمال ځایونهسمول

سرچينېسمول

  1. Wall, Greg (په 8 September 2003 کې). C&EN: It's Elemental: The Periodic Table - Actinium. C&EN: It's Elemental: The Periodic Table. Chemical and Engineering News
  2. ۲٫۰ ۲٫۱ ۲٫۲ Kirby, Harold W.; Morss, Lester R. (2006). [اصطلاحي تېروتنه: د ناپېژندلې ليکنښې لوښه "۱". "Actinium"]. The Chemistry of the Actinide and Transactinide Elements. pp. 18. doi:10.1007/1-4020-3598-5_2. ISBN 978-1-4020-3555-5. 

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