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118
11HHydrojen2
13141516172HeHelyum
23LiLythyum4BeBerylyum5BBoron6CCarbon7NNytrojen8OOxyjen9FFluryn10NeNeon
311NaSodyum12MgMagnysyum345678910111213AlAlumynyum14SiSylycon15PFosforus16SSulfor17ClCloryn18ArArgon
419KCalyum20CaCalcyum21ScScandyum22TiTytanyum23VVanadyum24CrCromyum25MnManganus26FeHorn27CoCobolt28NiNykel29CuCober30ZnSynk31GaGalyum32GeGermanyum33AsArsenyk34SeSelenyum35BrBromyn36KrCrypton
537RbRubydyum38SrStrontyum39YYtryum40ZrZerconyum41NbNyobyum42MoMolybdenum43TcTechnytyum44RuRuthenyum45RhRhodyum46PdPaladyum47AgArhans48CdCadmyum49InEyndyum50SnSten51SbAntymony52TeTeluryum53IEyodyn54XeXenon
655CsCesyum56BaBaryum57-71
La-Lu		72HfHafnyum73TaTantalum74WTungsten75ReRhenyum76OsOsmyum77IrYrydyum78PtPlatynum79AuOwr80HgArhans Bew81TlThalyum82PbPlom83BiBysmuth84PoPolonyum85AtAstatyn86RnRadon
787FrFrankyum88RaRadyum89-103
Ac-Lr		104RfRutherfordyum105DbDubnyum106SgSeaborgyum107BhBohryum108HsHassyum109MtMeytneryum110DsDarmstadtium111RgRoentgenium112CnCopernicium113NhNihonium114FlFlerovium115McMoscovium116LvLivermorium117TsTennessine118OgOganneson
8119UueUnunennium120UbnUnbinilium121-126
Ubu-Ubh
57LaLanthanum58CeKeryum59PrPrasodyum60NdNeodymyum61PmPromethyum62SmSamaryum63EuEuropyum64GdGadolynyum65TbTerbyum66DyDysprosyum67HoHolmyum68ErErbyum69TmThulyum70YbYterbyum71LuLutetyum
89AcActynyum90ThThoryum91PaProtoactynyum92UUranyum93NpNeptunyum94PuPlutonyum95AmAmerycanyum96CmCuryum97BkBerkelyum98CfCalyfornyum99EsEynsteynyum100FmFermyum101MdMendelevyum102NoNobelyum103LrLawrencyum
121UbuUnbiunium122UbbUnbibium123UbtUnbitrium124UbqUnbiquadium125UbpUnbipentium126UbhUnbihexium127UbsUnbiseptium
Prasodyum
Pr59
140.907659640811 (g/mol)
Lanthanoids
58Keryum60Neodymyum
Overview
  • Latin name:
    Praseodymium
  • Hanow Sowsnek:
    Praseodymium
  • Diskudhans year:
    1885
  • Discoverer:
    André-Louis Debierne
  • Pow an Diskudhans:
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  • Costu per 100 grammi:
    265 USD
  • CAS Number:
    CAS7440-10-0
  • Elektron shell:
    K2-L8-M18-N21-O8-P2-Q0-R0
        Elektrons:
        59
        Protons:
        59
        Neutrons:
        82
        Properties
        • Niver atomek:
          59
        • Atomek poester (Relative atomek mass):
          140.907659640811 (g/mol)
        • Tewder:
          6.77 (g/cm³)
        • Poynt tedha:
          935.0°C = 1715.00°F = 1208.15K
        • Poynt bryjyon:
          3130.0°C = 5666.00°F = 3403.15K
        • Valence:
          3
        • Period:
          6
        • Group:
        • Block:
          f - block
        • Spektrum dyllans:
        Perthyansow thermodynamek
        • Phase:
          Solid
        • Fusion heat:
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        • Tommder arbennek:
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        • Thermal omlesans:
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        • Tommder ethenans:
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        Atomek properties
        • Elektron configuration:
          [Xe] 4f3 6s2 = 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f3 5s2 5p6 6s2
          • Studhow oksidyans:
          • -
          • -
          • -
          • -
          • -
          • -
          • -
          • -
          • +3
          • +4
          • -
          • -
          • -
          • -
          • -
        • Ion kost:
          Pr3+
        • Galloes ionheans an atom:
          5.464 (eV)
        • Atomek radius:
          247 (pm)
        • Radius kovalent:
          190 (pm)
        • Radius Van der Waals:
          239 (pm)
        Perthyansow elektromagnetek
        • Tredanel conductivity:
          1428571.42857143 (S/m)
        • Tredanel type:
          Dielectric
        • Eghen vagnetek:
          ----
        • Susceptibilita magnetek folum:
          0.0028087
        • Susceptibilita magnetek poes:
          4.23 ⋅ 10-7
        • Susceptibilita magnetek molar:
          5.9604 ⋅ 10-8 (m³/mol)
        • Resistivity:
          7 ⋅ 10-7 (Ω · m)
        • Poynt ughhedhesedh:
          ----
        Crystal bagh
        • Structure of the grid:
          Hweghhornek stroth-fardellys dewblek
        • Grid parameters:
          a=3.673 Å; c=11.84 Å
        • Stons
          3.22
        • Tempredh Debye:
          ----
        Keworansel information
        • Color:
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        • CAS Number:
          CAS7440-10-0
        • CID Number:
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        • RTEC Number:
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        • Kaletter Brinell:
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        • Mohs hardness:
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        • Kaletter Vickers:
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        • Bulk modulus:
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        • Modulus Young:
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        • Liquid tewder:
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        • Folum molar:
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        • Kevradh Poisson:
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        • Modulus trehans:
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        • Sound speed:
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        • Menegva plegyans:
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        • Hedhesedh tommder:
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        Reactivity
        • Electronegativity:
          1.13
        • Valence:
          3
        • Elektron affinity:
          10.539 (kJ/mole)
        Perthyansow nuklerek
        • Radioactive:
          Na
        • Half life, s:
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        • Lifetime, s:
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        • Neutron krows section, barn:
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        • Fire hazard:
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        • Peryl yeghes:
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        • Reactivity:
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        • Peryl arbennek:
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        Prevalence
        • Universe consists of "Prasodyum" on
          ----
        • Howl consists of "Prasodyum" on
          1 ⋅ 10-5%
        • Oceans consists of "Prasodyum" on
          6.0 ⋅ 10-9%
        • Human korf consists of "Prasodyum" on
          ----
        • The an Norvys krestennen consists of "Prasodyum" on
          0.00092%
        • Meteorites konsystya of "Prasodyum" on
          9.8 ⋅ 10-6%