Magnesium |
| Simbool | Mg |
|---|---|
| Latynse naam | Magnesium |
| Atoomgetal | 12 |
| Periode | 3 |
| Element kategorie | Alkaliese aardmetale |
| Relatieve atomiese massa | 24.3050 |
| Groep | II.A |
| Electronegativiteit | 1.2 |
| Oksidering nommers | 2 |
| Elektronkonfigurasie | 1s2 2s2 2p6 3s2 |
| Digtheid [g/cm3] | 1.735 |
| Staat | Vaste stof |
| Smeltpunt [°C] | 648.8 |
| Kookpunt [°C] | 1090 |
| Atoomradius [pm] | 145 |
| Covalent radius [pm] | 130 |
| Termiese geleidingsvermoë [W m-1K-1] | 156 |
| Hitte kapasiteit [J K-1g-1] | 1.02 |
| Ontdekking | 1808 |
| Hardheid [Mohs-skaal] | 2.25 |
| Brinell-hardheid [MPa] | 260 |
| Young's modulus [GPa] | 45 |
| Elektriese geleiding [S m-1] | 2.24 · 107 |
| Shear modulus [GPa] | 17 |
| 1ste ionisasie-energie [eV] | 7.6462 |
| 2de ionisasie-energie [eV] | 15.035 |
| 3de ionisasie-energie [eV] | 80.143 |
| Stabiele isotope | 3 |
| Onstabiele isotope | 5 |