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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
Radyum
Ra88
226.032494020223 (g/mol)
Radioactive
Alkaline an norvys metals
87Frankyum89Actynyum
Overview
  • Latin name:
    Radium
  • Hanow Sowsnek:
    Radium
  • Diskudhans year:
    1898
  • Discoverer:
    Pierre Curie, Marie Skłodowska Curie
  • Pow an Diskudhans:
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  • Costu per 100 grammi:
    ----
  • CAS Number:
    CAS7440-14-4
  • Elektron shell:
    K2-L8-M18-N32-O18-P8-Q2-R0
      Elektrons:
      88
      Protons:
      88
      Neutrons:
      138
      Properties
      • Niver atomek:
        88
      • Atomek poester (Relative atomek mass):
        226.032494020223 (g/mol)
      • Tewder:
        5.50 (g/cm³)
      • Poynt tedha:
        700.0°C = 1292.00°F = 973.15K
      • Poynt bryjyon:
        1737.0°C = 3158.60°F = 2010.15K
      • Valence:
        2
      • Period:
        7
      • Group:
        IIA
      • Block:
        s - 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:
        [Rn] 7s2 = 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 6p6 7s2
        • Studhow oksidyans:
        • -
        • -
        • -
        • -
        • -
        • -
        • -
        • +2
        • -
        • -
        • -
        • -
        • -
        • -
        • -
      • Ion kost:
        Ra2+
      • Galloes ionheans an atom:
        5.279 (eV)
      • Atomek radius:
        ----
      • Radius kovalent:
        211 (pm)
      • Radius Van der Waals:
        283 (pm)
      Perthyansow elektromagnetek
      • Tredanel conductivity:
        1000000.0 (S/m)
      • Tredanel type:
        Conductor
      • Eghen vagnetek:
        ----
      • Susceptibilita magnetek folum:
        ----
      • Susceptibilita magnetek poes:
        ----
      • Susceptibilita magnetek molar:
        ----
      • Resistivity:
        1 ⋅ 10-6 (Ω · m)
      • Poynt ughhedhesedh:
        ----
      Crystal bagh
      • Structure of the grid:
        Kubek kresek-korf
      • Grid parameters:
        ----
      • Stons
        ----
      • Tempredh Debye:
        ----
      Keworansel information
      • Color:
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      • CAS Number:
        CAS7440-14-4
      • 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:
        0.9
      • Valence:
        2
      • Elektron affinity:
        9.6485 (kJ/mole)
      Perthyansow nuklerek
      • Radioactive:
        Ea
      • 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 "Radyum" on
        ----
      • Howl consists of "Radyum" on
        ----
      • Oceans consists of "Radyum" on
        1.0 ⋅ 10-13%
      • Human korf consists of "Radyum" on
        4.0 ⋅ 10-14%
      • The an Norvys krestennen consists of "Radyum" on
        9.0 ⋅ 10-11%
      • Meteorites konsystya of "Radyum" on
        ----