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Beryllium, 4Be
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Ki-pún sèng-chit |
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Miâ, hû-hō |
beryllium, Be |
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Gōa-hêng |
white-gray metallic |
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Beryllium tī chiu-kî-piáu lāi ê ūi-tì |
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Goân-chú-hoan |
4 |
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Goân-chú-liōng (±) |
9.0121831(5)[1] |
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Goân-sò͘ lūi-pia̍t |
kiⁿ-thó͘ kim-sio̍k |
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Cho̍k, hun-khu |
2 cho̍k, s khu |
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Chiu-kî |
tē 2 chiu-kî |
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Tiān-chú pâi-lia̍t |
[He] 2s2 |
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per shell |
2, 2 |
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Bu̍t-lí sèng-chit |
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Siòng |
kò͘-thé |
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Iûⁿ-tiám |
1560 K (1287 °C, 2349 °F) |
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Hut-tiám |
2742 K (2469 °C, 4476 °F) |
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Bi̍t-tō͘ (sek-un) |
1.85 g·cm−3 |
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1.690 g·cm−3 |
Lîm-kài-tiám |
5205 K, MPa (extrapolated) |
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Iûⁿ-hoà-jia̍t |
12.2 kJ·mol−1 |
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Cheng-hoat-jia̍t |
292 kJ·mol−1 |
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Jia̍t-iông-liōng |
16.443 J·mol−1·K−1 |
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cheng-khì-ap
P (Pa)
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1
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10
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100
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1 k
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10 k
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100 k
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tī T (K)
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1462
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1608
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1791
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2023
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2327
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2742
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Goân-chú sèng-chit |
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Sng-hòa-sò͘ |
+2, +1[2] (an amphoteric oxide) |
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Tiān-hū-tō͘ |
Pauling scale: 1.57 |
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Tiān-lī-lêng |
1st: 899.5 kJ·mol−1 2nd: 1757.1 kJ·mol−1 3rd: 14,848.7 kJ·mol−1 (more) |
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Goân-chú pòaⁿ-kèng |
empirical: 112 pm |
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Kiōng-kè pòaⁿ-kèng |
96±3 pm |
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Van der Waals pòaⁿ-kèng |
153 pm |
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Cha̍p-lio̍k |
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Chiⁿ-thé kò͘-chō |
hexagonal close-packed (hcp) |
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Siaⁿ-sok (sòe kùn-á) |
12,890 m·s−1 (at r.t.)[3] |
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Jia̍t-phòng-tiòng |
11.3 µm·m−1·K−1 (at 25 °C) |
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Jia̍t-thoân-tō-lu̍t |
200 W·m−1·K−1 |
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Tiān-chó͘-lu̍t |
36 nΩ·m (at 20 °C) |
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Chû-sèng |
diamagnetic |
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Young hē-sò͘ |
287 GPa |
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Shear hē-sò͘ |
132 GPa |
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Bulk hē-sò͘ |
130 GPa |
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Poisson pí |
0.032 |
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Mohs ngē-tō͘ |
5.5 |
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Vickers ngē-tō͘ |
1670 MPa |
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Brinell ngē-tō͘ |
590–1320 MPa |
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CAS teng-kì pian-hō |
7440-41-7 |
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Le̍k-sú |
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Hoat-hiān |
Louis Nicolas Vauquelin (1797) |
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Siōng chá hû-lî |
Friedrich Wöhler & Antoine Bussy (1828) |
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Chòe ún-tēng ê tông-ūi-sò͘ |
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Chú bûn-chiong: beryllium ê tông-ūi-sò͘ |
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Beryllium sī chi̍t-khóan gôan-sò͘ , sio̍k tē-2-cho̍k chham tē-2-chiu-kî.