Magnesium(Hon-ngî: 鎂 měi) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Mg, ngièn-chṳ́ su-muk he 12, chhai ngièn-su chû-khì-péu lî-tú phài thi 12 vi.
快速預覽 ngoi-kôn, Kî-pún sin-sit ...
Magnesium, 12Mg| ngoi-kôn |
|---|
shiny grey solid
Spectral lines of magnesium |
| Kî-pún sin-sit |
|---|
| Miàng, fù-ho |
magnesium, Mg |
|---|
| ngoi-hìn |
shiny grey solid |
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| Magnesium chhai chû-khì-péu ke vi-chi |
|---|
|
|
| ngièn-chṳ́ sì-sú |
12 |
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| ngièn-chṳ́-liòng |
24.305[1] (24.304–24.307)[2] |
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| ngièn-su lui-phe̍t |
kán-thú kîm-su̍k |
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| Chhu̍k, fûn-khî |
2 chhu̍k, s-block |
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| chû-khì |
period 3 |
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| thien-chṳ́ phài-lie̍t |
[Ne] 3s2 |
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| per shell |
2, 8, 2 |
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| vu̍t-lî sin-chṳt |
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| Siông |
ku-thí |
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| yùng-tiám |
923 K (650 °C, 1202 °F) |
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| pui-tiám |
1363 K (1091 °C, 1994 °F) |
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| Me̍t-thu near Sit-vûn |
1.738 g·cm−3 |
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|
1.584 g·cm−3 |
| Yùng-fa-ngie̍t |
8.48 kJ·mol−1 |
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| Chîn-fat-ngie̍t |
128 kJ·mol−1 |
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| Ngie̍t-yùng-liong |
24.869 J·mol−1·K−1 |
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chîn-hi-ap
| P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| chhai T (K) |
701 |
773 |
861 |
971 |
1132 |
1361 |
|
| Ngièn-chṳ́ sin-chṳt |
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| Yông-fa-su |
+2, +1[3] (a strongly basic oxide) |
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| Thien-fu-sin |
Pauling scale: 1.31 |
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| Thien-lì-nèn |
1st: 737.7 kJ·mol−1
2nd: 1450.7 kJ·mol−1
3rd: 7732.7 kJ·mol−1
(more) |
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| Ngièn-chṳ́ pan-kang |
empirical: 160 pm |
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| Khiung-ka pan-kang |
141±7 pm |
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| Van der Waals pan-kang |
173 pm |
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| Miscellanea |
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| Chîn-thí keu-chho |
hexagonal close-packed (hcp) |
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| Sâng-suk thin rod |
4940 m·s−1 (at r.t.) (annealed) |
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| Ngie̍t-phàng-chong |
24.8 µm·m−1·K−1 (at 25 °C) |
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| Ngie̍t-chhòn-thô-li̍t |
156 W·m−1·K−1 |
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| Thien-chú-li̍t |
43.9 nΩ·m (at 20 °C) |
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| Chhṳ̀-sin |
paramagnetic |
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| Young's modulus |
45 GPa |
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| Shear modulus |
17 GPa |
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| Bulk modulus |
45 GPa |
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| Poisson ratio |
0.290 |
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| Mohs hardness |
1–2.5 |
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| Brinell hardness |
44–260 MPa |
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| CAS Registry Number |
7439-95-4 |
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| Le̍k-sú |
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| Hí-miàng |
after Magnesia, Greece |
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| Fat-hien |
Joseph Black (1755) |
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| First isolation |
Humphry Davy (1808) |
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| Chui vún-thin ke thùng-vi-su |
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|
Chú vùn-chông: magnesium ke thùng-vi-su |
| iso |
NA |
half-life |
DM |
DE (MeV) |
DP |
| 24Mg |
78.99% |
24Mg is stable with 12 neutrons
|
| 25Mg |
10.00% |
25Mg is stable with 13 neutrons
|
| 26Mg |
11.01% |
26Mg is stable with 14 neutrons |
|
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