پراسيوديموميم

د ويکيپېډيا، وړیا پوهنغونډ له خوا
(له Praseodymium نه مخ گرځېدلی)
و اصلی برخی ته ورشی د پلټنې ځای ته ورټوپ کړی
Praseodymium,  59Pr
Praseodymium.jpg
عمومي خواص
Pronunciation /przəˈdɪmiəm/[۱]
pray-zee-ə-DIM-ee-əm
Appearance grayish white
Praseodymium 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
ceriumpraseodymiumneodymium
اټومي شمیره (Z) 59
گروپ, پیریود group n/a, period 6
بلاک f-block
Element category   lanthanide
معياري اټومي وزن (Ar) کينډۍ:Val[۲]
Electron configuration [Xe] 4f3 6s2
Electrons per shell
2, 8, 18, 21, 8, 2
فزیکي خواص
حالت (at STP) جامد
دويلې کيدو ټکى 1208 K ​(935 °C, ​1715 °F)
يشنا ټکی 3403 K ​(3130 °C, ​5666 °F)
Density near r.t. 6.77 g/cm3
when liquid, at m.p. 6.50 g/cm3
Heat of fusion 6.89 kJ/mol
Heat of vaporization 331 kJ/mol
Molar heat capacity 27.20 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1771 1973 (2227) (2571) (3054) (3779)
اټومي خواص
Oxidation states 5, 4, 3, 2 ​(a mildly basic oxide)
Electronegativity Pauling scale: 1.13
Ionization energies
  • 1st: 527 kJ/mol
  • 2nd: 1020 kJ/mol
  • 3rd: 2086 kJ/mol
Atomic radius empirical: 182 pm
Covalent radius 203±7 pm
Miscellanea
Crystal structuredouble hexagonal close-packed (dhcp)
Double hexagonal close packed crystal structure for praseodymium
Speed of sound thin rod 2280 m/s (at 20 °C)
Thermal expansion α, poly: 6.7 µm/(m·K) (at r.t.)
د تودوخې تېرېدنه 12.5 W/(m·K)
Electrical resistivity α, poly: 0.700 µΩ·m (at r.t.)
Magnetic ordering paramagnetic[۳]
Magnetic susceptibility (χmol) +5010.0·10−6 cm3/mol (293 K)[۴]
Young's modulus α form: 37.3 GPa
Shear modulus α form: 14.8 GPa
Bulk modulus α form: 28.8 GPa
Poisson ratio α form: 0.281
Vickers hardness 250–745 MPa
Brinell hardness 250–640 MPa
CAS Number 7440-10-0
History
Discovery Carl Auer von Welsbach (1885)
Main isotopes of praseodymium
آيسو­ټوپ Abun­dance نیم ژوند (t1/2) Decay mode Pro­duct
141Pr 100% stable

کينډۍ:Infobox element/isotopes decay2

143Pr syn 13.57 d β 143Nd
| references | in Wikidata

پراسيوديموميم (په انگرېزي: Praseodymium) له کیمیاوي عناصرو څخه یو دی چې په تناوبي جدول کې د Pr سمبول او ۵۹ اتمي شمېرې په وسیله ښودل شوی دی.

مشخصات[سمول]

تاریخچه[سمول]

مرکبات[سمول]

د استعمال ځایونه[سمول]

سرچينې[سمول]

  1. کينډۍ:OED
  2. 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. 
  3. Jackson, M. (2000). "Magnetism of Rare Earth". The IRM quarterly 10 (3): 1. http://www.irm.umn.edu/quarterly/irmq10-3.pdf. 
  4. Weast, Robert (1984). [اصطلاحي تېروتنه: د ناپېژندلې ليکنښې لوښه "۱". CRC, Handbook of Chemistry and Physics]. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4. 

Wiki letter w.svg دا ليکنه نابشپړه ده، تاسې ددې ليکنې په بشپړولو کې د ويکيپېډيا سره مرسته کولای شئ.