>MadeOfAtoms: Update density and thermal expansion

2024-04-13T20:00:49Z

Update density and thermal expansion

New page

{{Infobox element
|symbol =Pt
|Z =78
|number =78
|name =platinum
|abundance=
|abundance in earth's crust=
|abundance in oceans=
|abundance in solar system=
|left=[[iridium]]
|right=[[gold]]
|above=[[palladium|Pd]]
|below=[[darmstadtium|Ds]]
|image name=Platinum crystals.jpg
|appearance=silvery white
|electrons per shell=2, 8, 18, 32, 17, 1
|phase=
|density=21.452 g/cm<sup>3</sup> <ref name="Arblaster 2018" />
|density conditions=(at 20° C)
|density gpcm3mp=19.77
|melting point K=2041.4
|melting point C=1768.3
|melting point F=3214.9
|boiling point K=4098
|boiling point C=3825
|boiling point F=6917
|heat fusion=22.17
|heat vaporization=510
|heat capacity=25.86
|vapor pressure 1=2330
|vapor pressure 10=(2550)
|vapor pressure 100=2815
|vapor pressure 1 k=3143
|vapor pressure 10 k=3556
|vapor pressure 100 k=4094
|vapor pressure comment=
|crystal structure=face-centered cubic
|crystal structure Pearson symbol=cF4
|lattice constant=''a'' = 392.36 pm (at 20 °C)<ref name="Arblaster 2018">{{cite book |last=Arblaster |first= John W. |title=Selected Values of the Crystallographic Properties of Elements |publisher=ASM International |publication-place=Materials Park, Ohio |date=2018 |isbn=978-1-62708-155-9}}</ref>
|electronegativity=2.28
|number of ionization energies=2
|ionization energy 1=870
|ionization energy 2=1791
|atomic radius=139
|covalent radius=136±5
|Van der Waals radius=175
|magnetic ordering=[[paramagnetism|paramagnetic]]
|electrical resistivity unit prefix=n
|electrical resistivity at 20=105
|thermal conductivity=71.6
|thermal expansion=
|thermal expansion comment={{val|8.93|e=−6}}/K (at 20 °C)<ref name="Arblaster 2018" />
|thermal expansion at 25=
|speed of sound rod at r.t.=2800
|magnetic susceptibility= +201.9 × 10<sup>−6</sup>
|magnetic susceptibility ref=  (290 K)<ref>{{Cite book|title=CRC, Handbook of Chemistry and Physics|last=Weast|first=Robert|publisher=Chemical Rubber Company Publishing|year=1984|isbn=0-8493-0464-4|location=Boca Raton, Florida|pages=E110}}</ref>
|tensile strength=125–240
|Young's modulus=168
|Shear modulus=61
|Bulk modulus=230
|Poisson ratio=0.38
|Mohs hardness=3.5
|Vickers hardness=400–550
|Brinell hardness= 300–500
|CAS number=7440-06-4
|discovered by=[[Antonio de Ulloa]]
|discovery date=1735
|QID=Q880
}}<noinclude>
{{Infobox element/element navigation|symbol=Pt}}
{{template reference list}}
{{documentation|1=Template:Infobox element/doc}}
</noinclude>

Template:Infobox platinum - Revision history

>MadeOfAtoms: Update density and thermal expansion