Toorium as en cheemisk element mä det ufkörtang Th an det atoomnumer 90. Hat hiart tu a aktinoiden.
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Eegenskapen |
|
Algemian |
Nööm, Symbool, Numer |
Toorium, Th, 90 |
Seerie |
Aktinoid |
Skööl, Periode, Blook |
Ac, 7, f |
Klöör, Skak |
salwern witj |
CAS-Numer |
7440-29-1 |
Uundial |
11 ppm[1] |
Atomaar [2] |
Atoommase |
232,0377(4)[3][4] u |
Atoomraadius (bereegent) |
180 () pm |
Kovalent-Raadius |
206 pm |
Elektroonen |
[Rn] 6d2 7s2 |
1. Ionisiarang |
578 kJ/mol |
2. Ionisiarang |
1110 kJ/mol |
3. Ionisiarang |
1930 kJ/mol |
4. Ionisiarang |
2780 kJ/mol |
Füsikaalisk [5] |
Tustant |
fääst |
Feranrangen |
2 |
Kristal |
kuubisk |
Sachthaid |
11,724 g/cm3[6] |
Hardhaid |
3,0 |
Magnetismus |
paramagneetisk (Χm = 8,4 · 10−5)[7] |
Smoltponkt |
2028[6] K (1755 °C) |
Köögponkt |
5061 K[6] K (4788 °C) |
Molaar Rüm |
19,80 · 10−6 m3/mol |
Dampwaremk |
530 kJ/mol kJ/mol |
Smoltwaremk |
16 kJ/mol |
Faard faan a tuun |
2490 m/s bi 293,15 K |
Elektrisk struumfeerang |
6,67 · 106 A/(V · m) |
Waremkfeerang |
54 W/(m · K) |
Cheemisk [8] |
Oksidatsionstustant |
4,3,2 |
Sür of baasisk |
swaak baasisk |
Elektronegatiwiteet |
1,3 (Pauling-Skala) |
Isotoopen |
Isotoop |
NH |
t1/2 |
Aktiwiteet |
Energii (MeV) |
Produkt |
227Th |
ferenkelt
| 18,72 d | α | 6,146 | 223Ra |
228Th |
ferenkelt
| 1,9131 a | α | 5,520 | 224Ra |
229Th |
{syn.}
| 7917 a | α | 5,168 | 225Ra |
230Th |
ferenkelt
| 75.380 a | α | 4,770 | 226Ra | SF (10−11 %) | | |
231Th |
ferenkelt
| 25,52 h | β− | 0,389 | 231Pa | α (10−8 %) | 4,213 | 227Ra |
232Th |
100 %
| 1,405 · 1010 a | α | 4,083 | 228Ra | SF (10−9 %) | | |
233Th |
{syn.}
| 22,3 min | β− | 1,245 | 233Pa |
234Th |
ferenkelt
| 24,10 d | β− | 0,273 | 234Pa |
|
Muar isotoopen bi List faan isotoopen |
Seekerhaid |
|
Muar wäärnangen |
Radioaktiif |
Radioaktiif Radioaktiif element |
Miast wurd SI-ianhaiden brükt. |
Schließen