نېپټونيوم

د ويکيپېډيا، وړیا پوهنغونډ له خوا
(له Neptunium نه مخ گرځېدلی)
و اصلی برخی ته ورشی د پلټنې ځای ته ورټوپ کړی
Neptunium,  93Np
Np sphere.jpg
عمومي خواص
Pronunciation UK /nɛpˈtjniəm/, US /nɛpˈtniəm/
nep-TEW-nee-əm, nep-TOO-nee-əm
Appearance silvery metallic
Neptunium 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)
Pm

Np

(Uqs)
uraniumneptuniumplutonium
اټومي شمیره (Z) 93
گروپ, پیریود group n/a, period 7
بلاک f-block
Element category   actinide
Mass number 237 (most stable isotope)
Electron configuration [Rn] 5f4 6d1 7s2
Electrons per shell
2, 8, 18, 32, 22, 9, 2
فزیکي خواص
حالت (at STP) جامد
دويلې کيدو ټکى 912±3 K ​(639±3 °C, ​1182±5 °F)
يشنا ټکی 4447 K ​(4174 °C, ​7545 °F) (extrapolated)
Density near r.t. alpha: 20.45 g/cm3[۱]
accepted standard value: 19.38 g/cm3
Heat of fusion 5.19 kJ/mol
Heat of vaporization 336 kJ/mol
Molar heat capacity 29.46 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 2194 2437
اټومي خواص
Oxidation states 7, 6, 5, 4, 3, 2 ​(an amphoteric oxide)
Electronegativity Pauling scale: 1.36
Ionization energies
  • 1st: 604.5 kJ/mol
Atomic radius empirical: 155 pm
Covalent radius 190±1 pm
Miscellanea
Crystal structureorthorhombic
Orthorhombic crystal structure for neptunium
د تودوخې تېرېدنه 6.3 W/(m·K)
Electrical resistivity 1.220 µΩ·m (at 22 °C)
Magnetic ordering paramagnetic[۲]
CAS Number 7439-99-8
History
Naming after planet Neptune, itself named after Roman god of the sea Neptune
Discovery Edwin McMillan and Philip H. Abelson (1940)
Main isotopes of neptunium
آيسو­ټوپ Abun­dance نیم ژوند (t1/2) Decay mode Pro­duct

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

237Np trace 2.144×106 y α 233Pa
239Np trace 2.356 d β 239Pu
| references | in Wikidata

نېپټونيوم (په انگرېزي: Neptunium) له کیمیاوي عناصرو څخه یو دی چې په تناوبي جدول کې د Np سمبول او ۹۳ اتمي شمېرې په وسیله ښودل شوی دی.

مشخصات[سمول]

تاریخچه[سمول]

مرکبات[سمول]

د استعمال ځایونه[سمول]

سرچينې[سمول]

  1. . Criticality of a 237Np Sphere. Japanese Atomic Energy Agency
  2. Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.

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