امېرېسيوم

د ويکيپېډيا، وړیا پوهنغونډ له خوا
و اصلی برخی ته ورشی د پلټنې ځای ته ورټوپ کړی
Americium,  95Am
Americium microscope.jpg
Americium spectrum visible.png
Spectral lines of americium
عمومي خواص
Pronunciation /ˌæməˈrɪsiəm/
AM-ə-RIS-ee-əm
Appearance silvery white
Americium 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)
Eu

Am

(Uqe)
plutoniumamericiumcurium
اټومي شمیره (Z) 95
گروپ, پیریود group n/a, period 7
بلاک f-block
Element category   actinide
Mass number 243 (most stable isotope)
Electron configuration [Rn] 5f7 7s2
Electrons per shell
2, 8, 18, 32, 25, 8, 2
فزیکي خواص
حالت (at STP) جامد
دويلې کيدو ټکى 1449 K ​(1176 °C, ​2149 °F)
يشنا ټکی 2880 K ​(2607 °C, ​4725 °F) (calculated)
Density near r.t. 12 g/cm3
Heat of fusion 14.39 kJ/mol
Molar heat capacity 62.7 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1239 1356
اټومي خواص
Oxidation states 8, 7, 6, 5, 4, 3, 2 ​(an amphoteric oxide)
Electronegativity Pauling scale: 1.3
Ionization energies
  • 1st: 578 kJ/mol
Atomic radius empirical: 173 pm
Covalent radius 180±6 pm
Miscellanea
Crystal structuredouble hexagonal close-packed (dhcp)
Double hexagonal close packed crystal structure for americium
د تودوخې تېرېدنه 10 W/(m·K)
Electrical resistivity 0.69 µΩ·m[۱]
Magnetic ordering paramagnetic
Magnetic susceptibility (χmol) +1000.0·10−6 cm3/mol[۲]
CAS Number 7440-35-9
History
Naming after the Americas
Discovery Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso (1944)
Main isotopes of americium
آيسو­ټوپ Abun­dance نیم ژوند (t1/2) Decay mode Pro­duct

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

| references | in Wikidata

امېرېسيوم (په انگرېزي: Americium) له کیمیاوي عناصرو څخه یو دی چې په تناوبي جدول کې د Am سمبول او ۹۵ اتمي شمېرې په وسیله ښودل شوی دی.

مشخصات[سمول]

تاریخچه[سمول]

مرکبات[سمول]

د استعمال ځایونه[سمول]

سرچينې[سمول]

  1. Muller, W.; Schenkel, R.; Schmidt, H. E.; Spirlet, J. C.; McElroy, D. L.; Hall, R. O. A.; Mortimer, M. J. (1978). [اصطلاحي تېروتنه: د ناپېژندلې ليکنښې لوښه "۱". "The electrical resistivity and specific heat of americium metal"]. Journal of Low Temperature Physics 30 (5–6): 561. doi:10.1007/BF00116197. Bibcode1978JLTP...30..561M. 
  2. 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. 

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