| Nosaukums, simbols, numurs | Magnijs, Mg, 12 |
| Atommasa | 24,3050 g/mol |
| Blīvums | 1738 kg/m3 |
| Kušanas temperatūra | 932 K (650°C) |
| Vārīšanās temperatūra | 1363 K (1090°C) |
Magnijs (magnēzijs) ir ķīmiskais elements ar simbolu Mg un atomskaitli 12. Magnijs ir pieskaitāms pie sārmzemju metāliem. Magnijs dabā nav sastopams brīvā veidā. Dabā magnijs ir sastopmas galvenokārt karbonātu veidā (kā tīrs magnija karbonāts un dolomītā, kopā ar kalcija karbonātu) un sulfāta veidā, jūras ūdenī. Savienojumos magnijam ir vērtība +2. Magniju lieto kā vieglu metālu sakausējumos, un kā reducētāju (ar magniju var reducēt brīvu silīciju no SiO2).
BW Bewise Inc.
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