text: # Lòi (gĭng-sṳ̆k)
  Chăng-kō̤ Mìng-dĕ̤ng-ngṳ̄ Háng-cê gì bēng-buōng. / 參考閩東語漢字其版本。
  Lòi (鐳) sê siŏh cṳ̄ng gĭng-sṳ̆k, iâ sê siŏh cṳ̄ng huá-hŏk nguòng-só. Nguòng-cṳ̄ sê̤ṳ-só sê 88, huá-hŏk hù-hô̤ sê Ra.
  
title: Lòi (gĭng-sṳ̆k)
wikitext: {{twinLAT|鐳}}
  {{Infobox element
  |number=88
  |symbol=Ra
  |name=Ra­di
  |enname=radium
  |laname=radium
  |left= [[francium|Franci]]
  |right=[[actinium|Actini]]
  |above=[[barium|Bari]]
  |below=([[Unbinilium|Ubn]])
  |series=giĕng-tū gĭng-sṳ̆k
  |group=2
  |period=7
  |block=s
  |image name=Radium226.jpg
  |appearance=silvery white metallic
  |atomic mass=(226)
  |electron configuration=&#91;[[radon|Rn]]&#93; 7s<sup>2</sup>
  |electrons per shell=2, 8, 18, 32, 18, 8, 2
  |phase=gó-tā̤
  |density gpcm3nrt=5.5
  |melting point K=973
  |melting point C=700
  |melting point F=1292
  |melting point comment=''(disputed)''
  |boiling point K=2010
  |boiling point C=1737
  |boiling point F=3159
  |heat fusion=8.5
  |heat vaporization=113
  |vapor pressure 1=819
  |vapor pressure 10=906
  |vapor pressure 100=1037
  |vapor pressure 1 k=1209
  |vapor pressure 10 k=1446
  |vapor pressure 100 k=1799
  |vapor pressure comment=
  |crystal structure=body-centered cubic
  |oxidation states='''2'''
  |oxidation states comment=(expected to have a strongly [[base (chemistry)|basic]] oxide)
  |electronegativity=0.9
  |number of ionization energies=2
  |ionization energy 1=509.3
  |ionization energy 2=979.0
  |covalent radius=221±2
  |Van der Waals radius=283
  |magnetic ordering=nonmagnetic
  |electrical resistivity unit prefix=µ
  |electrical resistivity at 20=1
  |thermal conductivity=18.6
  |CAS number=7440-14-4
  |isotopes=
  {{infobox element/isotopes decay | mn=223 | sym=Ra
   | na=[[trace radioisotope|trace]] | hl=11.43&nbsp;d
   | dm=[[alpha emission|α]] | de=5.99 | link1=radon-219 | pn=219 | ps=Rn}}
  {{infobox element/isotopes decay | mn=224 | sym=Ra
   | na=trace | hl=3.6319&nbsp;d
   | dm=α | de=5.789 | link1=radon-220 | pn=220 | ps=Rn}}
  {{infobox element/isotopes decay | mn=225 | sym=Ra
   | na=trace | hl=14.9&nbsp;d
   | dm=[[beta emission|β<sup>−</sup>]] | de=0.356 | link1=actinium-225 | pn=225 | ps=Ac}}
  {{infobox element/isotopes decay | mn=226 | sym=Ra
   | na=trace | hl=1600&nbsp;y
   | dm=α | de=4.871 | link1=radon-222 | pn=222 | ps=Rn}}
  {{infobox element/isotopes decay | mn=228 | sym=Ra
   | na=trace | hl=5.75&nbsp;y
   | dm=β<sup>−</sup> | de=0.046 | link1=actinium-228 | pn=228 | ps=Ac}}
  |isotopes comment=
  |discovered by=[[Pierre Curie]] and [[Marie Curie]]
  |discovery date=1898
  |first isolation by=Marie Curie
  |first isolation date=1910
  }}
  '''Lòi''' (鐳) sê siŏh cṳ̄ng [[gĭng-sṳ̆k]], iâ sê siŏh cṳ̄ng [[huá-hŏk nguòng-só]]. [[Nguòng-cṳ̄ sê̤ṳ-só]] sê 88, huá-hŏk hù-hô̤ sê Ra.
  
  ==Huá-hŏk séng-cék==
  
  ==Éng-ê̤ṳng==
  
  ==Cié-chṳ̄==
  
  ==Chăng-kō̤ cṳ̆-lâiu==
  {{reflist}}
  
  {{Ciŭ-gĭ-biēu}}
  {{Authority control}}
  [[分類:Huá-hŏk nguòng-só]]