Bismut (uk: Wismut) as en cheemisk element mä det ufkörtang Bi an det atoomnumer 83. Bismut stäänt uun det skööl faan a pniktogeenen an as en swaak raadioaktiif metal.
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Eegenskapen |
|
Algemian |
Nööm, Symbool, Numer |
Bismut, Bi, 83 |
Seerie |
Metal |
Skööl, Periode, Blook |
15, 6, p |
Klöör, Skak |
skürnin salwer-witj |
CAS-Numer |
7440-69-9 |
Uundial |
0,2 ppm |
Atomaar [1] |
Atoommase |
208,98040(1)[2] u |
Atoomraadius (bereegent) |
160 (143) pm |
Kovalent-Raadius |
148 pm |
Van der Waals-Raadius |
207[3] pm |
Elektroonen |
[Xe] 4f14 5d10 6s2 6p3 |
1. Ionisiarang |
703 kJ/mol |
2. Ionisiarang |
1610 kJ/mol |
3. Ionisiarang |
2466 kJ/mol |
4. Ionisiarang |
4370 kJ/mol |
5. Ionisiarang |
5400 kJ/mol |
Füsikaalisk [4] |
Tustant |
fääst |
Kristal |
triigonaal |
Sachthaid |
9,78 g/cm3 |
Hardhaid |
2,25 |
Magnetismus |
diamagneetisk (Χm = −1,7 · 10−4)[5] |
Smoltponkt |
544,4 K (271,3 °C) |
Köögponkt |
1833 K[6] K (1560 °C) |
Molaar Rüm |
21,31 · 10−6 m3/mol |
Dampwaremk |
179 kJ/mol[6] kJ/mol |
Smoltwaremk |
10,9 kJ/mol |
Faard faan a tuun |
1790 m/s bi 293,15 K |
Elektrisk struumfeerang |
0,769 · 106 A/(V · m) |
Waremkfeerang |
8 W/(m · K) |
Cheemisk [7] |
Oksidatsionstustant |
(−3) 1, 3, 5 |
Sür of baasisk |
lacht sür |
Normoolpotentiaal |
0,317 V (Bi3+ + 3 e− → Bi) |
Elektronegatiwiteet |
2,02 (Pauling-Skala) |
Isotoopen |
Isotoop |
NH |
t1/2 |
Aktiwiteet |
Energii (MeV) |
Produkt |
205Bi |
{syn.}
| 15,31 d | ε | 2,708 | 205Pb |
206Bi |
{syn.}
| 6,243 d | ε | 3,758 | 206Pb |
207Bi |
{syn.}
| 31,55 a | ε | 2,399 | 207Pb |
208Bi |
{syn.}
| 3.368.000 a | ε | 2,880 | 208Pb |
209Bi |
≈ 100 %
| 1,9 · 1019 a | α | 3,137 | 205Tl |
210Bi |
ferenkelt
| 5,013 d | β− | 1,163 | 210Po | α | 5,037 | 206Tl |
210m1Bi |
{syn.}
| 3,04 · 106 a | α | | 206Tl |
211Bi |
ferenkelt
| 2,14 min | β− | 0,579 | 211Po | α | 6,751 | 207Tl |
212Bi |
ferenkelt
| 60,55 min | β− | 2,254 | 212Po | α | 6,027 | 208Tl |
213Bi |
{syn.}
| 49,59 min | β− | 1,426 | 213Po | α | 5,932 | 209Tl |
214Bi |
ferenkelt
| 19,9 min | β− | 3,272 | 214Po | α | 5,617 | 210Tl |
215Bi |
ferenkelt
| 7,6 min | β− | 2,250 | 215Po |
|
Muar isotoopen bi List faan isotoopen |
Seekerhaid |
|
Miast wurd SI-ianhaiden brükt. |
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