Eerdalkaalimetalen san cheemisk elementen uun det 2. skööl faan't periodensüsteem. Jo stun uun't periodensüsteem tesken a alkaalimetalen an a eerdmetalen. Diar komt uk di nööm faan uf.
 Tekst üüb Öömrang |
| Skööl | 2 |
| Hoodskööl | 2 |
| Periode | |
| 2 | 4 Be |
| 3 | 12 Mg |
| 4 | 20 Ca |
| 5 | 38 Sr |
| 6 | 56 Ba |
| 7 | 88 Ra |
| (8) | (120) Ubn |
Tu detdiar skööl hiar Berülium (Be), Magneesium (Mg), Kaltsium (Ca), Strontsium (Sr), Baarium (Ba) an det raadioaktiif element Raadium (Ra).
Eegenskapen
| Eerdalkaalimetal | Atoommase (u) |
Smoltponkt (K) |
Köögponkt (K) |
Sachthaid (kg/m³) |
Hardhaid |
|---|---|---|---|---|---|
| Berülium | 1551,15 | 3243 | 1848 | 5,5 | |
| Magneesium | 923 | 1380 | 1738 | 2,5 | |
| Kaltsium | 1115 | 1757 | 1550 | 1,75 | |
| Strontsium | 1050 | 1655 | 2630 | 1,5 | |
| Baarium | 1000 | 1913 | 3620 | 1,25 | |
| Raadium | 973 | 2010 | 5500 | 2,3 |
Luke uk diar
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