Movatterモバイル変換

[0]ホーム
URL:

Jump to content
Wikipedia
Ṣe àwáàrí

Polonium

Lát'ọwọ́ Wikipedia, ìwé ìmọ̀ ọ̀fẹ́
Chemical element with atomic number 84Àdàkọ:SHORTDESC:Chemical element with atomic number 84
Polonium, 84Po
Polonium
Pípè/pəˈləʊniəm/​(pə-LOH-nee-əm)
Ìhànsójúsilvery
nọ́mbà ìsújọ[209]
Polonium ní orítábìlì àyè
HydrogenHelium
LithiumBerylliumBoronCarbonNitrogenOxygenFluorineNeon
SodiumMagnesiumAluminiumSiliconPhosphorusSulfurChlorineArgon
PotassiumCalciumScandiumTitaniumVanadiumChromiumManganeseIronCobaltNickelCopperZincGalliumGermaniumArsenicSeleniumBromineKrypton
RubidiumStrontiumYttriumZirconiumNiobiumMolybdenumTechnetiumRutheniumRhodiumPalladiumSilverCadmiumIndiumTinAntimonyTelluriumIodineXenon
CaesiumBariumLanthanumCeriumPraseodymiumNeodymiumPromethiumSamariumEuropiumGadoliniumTerbiumDysprosiumHolmiumErbiumThuliumYtterbiumLutetiumHafniumTantalumTungstenRheniumOsmiumIridiumPlatinumGoldMercury (element)ThalliumLeadBismuthPoloniumAstatineRadon
FranciumRadiumActiniumThoriumProtactiniumUraniumNeptuniumPlutoniumAmericiumCuriumBerkeliumCaliforniumEinsteiniumFermiumMendeleviumNobeliumLawrenciumRutherfordiumDubniumSeaborgiumBohriumHassiumMeitneriumDarmstadtiumRoentgeniumCoperniciumNihoniumFleroviumMoscoviumLivermoriumTennessineOganesson
Te
↑
Po
↓
Lv
bismuth ←polonium →astatínì
Nọ́mbà átọ̀mù(Z)84
Ẹgbẹ́group 16 (chalcogens)
Àyèàyè 6
Àdìpọ̀Àdìpọ̀-p
Ẹ̀ka ẹ́límẹ́ntì Post-transition metal
Ìtò ẹ̀lẹ́ktrọ́nù[Xe] 4f14 5d10 6s2 6p4
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2, 8, 18, 32, 18, 6
Àwọn ohun ìní ara
Ìfarahànat STPsolid
Ìgbà ìyọ́527 K​(254 °C,​489 °F)
Ígbà ìhó1235 K​(962 °C,​1764 °F)
Kíki(near r.t.)(alpha) 9.196 g/cm3
(beta) 9.398 g/cm3
Heat of fusionca. 13 kJ/mol
Heat of102.91 kJ/mol
Molar heat capacity26.4 J/(mol·K)
 pressure
P (Pa)1101001 k10 k100 k
at T (K)   (846)10031236
Atomic properties
Oxidation states−2,+2,+4, +5,[1] +6Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
ElectronegativityPauling scale: 2.0
Atomic radiusempirical:168 pm
Covalent radius140±4 pm
Van der Waals radius197 pm
Color lines in a spectral range
Color lines in a spectral range
Spectral lines of polonium
Other properties
Natural occurrencefrom decay
Crystal structure​cubic
Cubic crystal structure for polonium
Thermal expansion23.5 µm/(m·K)(at 25 °C)
Thermal conductivity? 20 W/(m·K)
Electrical resistivity(α) 0.40 µ Ω·m(at 0 °C)
Magnetic orderingnonmagnetic
CAS Number7440-08-6
Mainisotopes of polonium
Iso­topeAbun­danceHalf-life(t1/2)Decay modePro­duct
208Posyn2.898yα5.215204Pb
ε,β+1.401208Bi
209Posyn103 yα4.979205Pb
ε,β+1.893209Bi
210Potrace138.376dα5.307206Pb
Àdàkọ:Category-inline
|references

Polonium (pípè/pɵˈloʊniəm/,po-LOH-nee-əm) jeipilese kemika pelu ami-idamoPo atinomba atomu 84, tiMarie Skłodowska-Curie atiPierre Curie se awari ni 1898.

Àyọkà yìí tàbí apá rẹ̀ únfẹ́ àtúnṣe sí.

Ẹ lefẹ̀ jù báyìí lọ tàbí kí ẹṣàtúnṣe rẹ̀ lọ́nà tí yíò mu kúnrẹ́rẹ́. Ẹ ran Wikipedia lọ́wọ́ látifẹ̀ẹ́ jù báyìí lọ.

Itumosi

[àtúnṣe |àtúnṣe àmìọ̀rọ̀]
  1. ↑Thayer,John S.(2010)."Relativistic Effects and the Chemistry of the Heavier Main Group Elements".Relativistic Methods for Chemists: 78.doi:10.1007/978-1-4020-9975-5_2.ISBN 978-1-4020-9974-8. 
 wò • if. • at. Tábìlì ìdásìkò
123456789101112131415161718
1HHe
2LiBeBCNOFNe
3NaMgAlSiPSClAr
4KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
5RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
6CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
7FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg
Mẹ́tàlì álkálìMẹ́tàlì alkalínì ilẹ̀LanthanideÁktínídìTransition metalPost-transition metalMẹ́tálọ́ìdìÀìjẹ́mẹ́tàlì mírànHalojínẸ̀fúùfù abíireUnknown chemical properties
Large version
Jẹ́ kíkójáde láti "https://yo.wikipedia.org/w/index.php?title=Polonium&oldid=460386"
Àwọn ẹ̀ka:
Áwọn ẹ̀ka bíbòmọ́lẹ̀:
[8]ページ先頭
©2009-2026 Movatter.jp