پروټېکټېنيوم

د ويکيپېډيا، وړیا پوهنغونډ له خوا
(له Protactinium نه مخ گرځېدلی)
و اصلی برخی ته ورشی د پلټنې ځای ته ورټوپ کړی
Protactinium,  91Pa
عمومي خواص
Pronunciation /ˌprtækˈtɪniəm/
PROH-tak-TIN-ee-əm
Appearance bright, silvery metallic luster
Protactinium 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)
Pr

Pa

(Uqp)
thoriumprotactiniumuranium
اټومي شمیره (Z) 91
گروپ, پیریود group n/a, period 7
بلاک f-block
Element category   actinide
معياري اټومي وزن (Ar) کينډۍ:Val[۱]
Electron configuration [Rn] 5f2 6d1 7s2
Electrons per shell
2, 8, 18, 32, 20, 9, 2
فزیکي خواص
حالت (at STP) جامد
دويلې کيدو ټکى 1841 K ​(1568 °C, ​2854 °F)
يشنا ټکی 4300 K ​(4027 °C, ​7280 °F) (?)
Density near r.t. 15.37 g/cm3
Heat of fusion 12.34 kJ/mol
Heat of vaporization 481 kJ/mol
اټومي خواص
Oxidation states 2, 3, 4, 5 ​(a weakly basic oxide)
Electronegativity Pauling scale: 1.5
Ionization energies
  • 1st: 568 kJ/mol
Atomic radius empirical: 163 pm
Covalent radius 200 pm
Miscellanea
Crystal structuretetragonal[۲]
Tetragonal crystal structure for protactinium
Thermal expansion ~9.9 µm/(m·K)[۳] (at r.t.)
د تودوخې تېرېدنه 47 W/(m·K)
Electrical resistivity 177 nΩ·m (at 0 °C)
Magnetic ordering paramagnetic[۴]
CAS Number 7440-13-3
History
Prediction Dmitri Mendeleev (1869)
Discovery and first isolation Kasimir Fajans and Oswald Helmuth Göhring (1913)
Named by Otto Hahn and Lise Meitner (1917–8)
Main isotopes of protactinium
آيسو­ټوپ Abun­dance نیم ژوند (t1/2) Decay mode Pro­duct
229Pa syn 1.5 d ε 229Th
230Pa syn 17.4 d ε 230Th
231Pa 100% 3.276×104 y α 227Ac
232Pa syn 1.31 d β 232U
233Pa trace 26.967 d β 233U
234Pa trace 6.75 h β 234U
234mPa trace 1.17 min β 234U
| references | in Wikidata

پروټېکټېنيوم (په انگرېزي: Protactinium) له کیمیاوي عناصرو څخه یو دی چې په تناوبي جدول کې د Pa سمبول او ۹۱ اتمي شمېرې په وسیله ښودل شوی دی.

مشخصات[سمول]

تاریخچه[سمول]

مرکبات[سمول]

د استعمال ځایونه[سمول]

سرچينې[سمول]

  1. Meija, J.; Coplen, T. B. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure Appl. Chem. 88 (3): 265-91. doi:10.1515/pac-2015-0305. https://www.degruyter.com/downloadpdf/j/pac.2016.88.issue-3/pac-2015-0305/pac-2015-0305.xml. 
  2. Donohue, J. (1959). [اصطلاحي تېروتنه: د ناپېژندلې ليکنښې لوښه "۱". "On the crystal structure of protactinium metal"]. Acta Crystallographica 12 (9): 697. doi:10.1107/S0365110X59002031. 
  3. Cverna, Fran, ed (2002). "Chapter 2. Thermal Expansion". ASM Ready Reference: Thermal Properties of Metals. ASM International. p. 11. ISBN 0871707683. http://www.owlnet.rice.edu/~msci301/ThermalExpansion.pdf. 
  4. Lide, D. R., ed (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5. http://web.archive.org/web/20110303222309/http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf. 

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