| Eegenskapen |
|---|
|
| Algemian |
|---|
| Nööm, Symbool, Numer | Neodüüm, Nd, 60 |
| Seerie | Lantanoid |
| Skööl, Periode, Blook | La,6, f |
| Klöör, Skak | salwerwitj, lacht güül |
| CAS-Numer | 7440-00-8 |
| Uundial | 22 ppm[1] |
| Atomaar[2] |
|---|
| Atoommase | 144,242(3)[3]u |
| Atoomraadius (bereegent) | 185 (206)pm |
| Kovalent-Raadius | 201 pm |
| Elektroonen | [Xe] 4f4 6s2 |
| 1. Ionisiarang | 533,1kJ/mol |
| 2. Ionisiarang | 1040 kJ/mol |
| 3. Ionisiarang | 2130 kJ/mol |
| Füsikaalisk[2] |
|---|
| Tustant | fääst |
| Kristal | hexagonaal |
| Sachthaid | 7,003 g/cm3 (25°C)[4] |
| Magnetismus | paramagneetisk (Χm = 3,6 · 10−3)[5] |
| Smoltponkt | 1297K (1024 °C) |
| Köögponkt | 3303 K[6]K (3030 °C) |
| Molaar Rüm | 20,59 · 10−6 m3/mol |
| Dampwaremk | 289 kJ/mol[6] kJ/mol |
| Smoltwaremk | 7,1 kJ/mol |
| Faard faan a tuun | 2330 m/s bi 293,15 K |
| Waremk | 190 J/(kg · K) |
| Elektrisk struumfeerang | 1,56 · 106 A/(V · m) |
| Waremkfeerang | 17W/(m · K) |
| Cheemisk[2] |
|---|
| Oksidatsionstustant | 2,3 , 4 |
| Sür ofbaasisk | lachtbaasisk |
| Normoolpotentiaal | −2,32V
(Nd3+ + 3 e− → Nd) |
| Elektronegatiwiteet | 1,14 (Pauling-Skala) |
| Isotoopen |
|---|
| Isotoop | NH | t1/2 | Aktiwiteet | Energii (MeV) | Produkt |
|---|
| 142Nd | 27,13 % | stabiil | | 143Nd | 12,18 % | stabiil | | 144Nd | 23,8 % | 2,29 · 1015a | α | 1,905 | 140Ce | | 145Nd | 8,3 % | stabiil | | 146Nd | 17,19 % | stabiil | | 147Nd | {syn.} | 10,98d | β− | 0,896 | 147Pm | | 148Nd | 5,76 % | stabiil | | 149Nd | {syn.} | 1,728h | β− | 1,691 | 149Pm | | 150Nd | 5,64 % | 1,1 · 1019a | β−β− | 3,367 | 150Sm |
|
| Muar isotoopen biList faan isotoopen |
|---|
| NMR-Eegenskapen |
|---|
|
| Seekerhaid |
|---|
|
| Miast wurdSI-ianhaiden brükt. |
.jpg)
