Platinum |
| Simbool | Pt |
|---|---|
| Latynse naam | Platinium |
| Atoomgetal | 78 |
| Periode | 6 |
| Element kategorie | Oorgangselemente |
| Relatieve atomiese massa | 195.08 |
| Groep | VIII.B |
| Electronegativiteit | 2.2 |
| Oksidering nommers | 2, 4, 6 |
| Elektronkonfigurasie | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d9 6s1 |
| Digtheid [g/cm3] | 21.45 |
| Staat | Vaste stof |
| Smeltpunt [°C] | 1772 |
| Kookpunt [°C] | 3827 |
| Atoomradius [pm] | 177 |
| Covalent radius [pm] | 128 |
| Termiese geleidingsvermoë [W m-1K-1] | 71.6 |
| Hitte kapasiteit [J K-1g-1] | 0.13 |
| Ontdekking | 1735 |
| Hardheid [Mohs-skaal] | 4.3 |
| Vickers se hardheid [MPa] | 549 |
| Brinell-hardheid [MPa] | 392 |
| Young's modulus [GPa] | 168 |
| Elektriese geleiding [S m-1] | 9.4 · 106 |
| Elektriese weerstandbieding [10-6Ω.m] | 0.106 |
| Shear modulus [GPa] | 61 |
| 1ste ionisasie-energie [eV] | 9.0 |
| 2de ionisasie-energie [eV] | 18.563 |
| Stabiele isotope | 6 |
| Onstabiele isotope | 28 |