Magnesium, 12 Mg
Spectral lines of magnesium
Ki-pún sèng-chit Miâ, hû-hō
magnesium, Mg Phian-miâ
khó͘-thó͘ Gōa-hêng
shiny grey solid Magnesium tī chiu-kî-piáu lāi ê ūi-tì
Goân-chú-hoan
12 Goân-chú-liōng
24.305[ 1] (24.304–24.307)[ 2] Goân-sò͘ lūi-pia̍t
kiⁿ-thó͘ kim-sio̍k Cho̍k , hun-khu
2 cho̍k , s khu Chiu-kî
tē 3 chiu-kî Tiān-chú pâi-lia̍t
[Ne ] 3s2 per shell
2, 8, 2 Bu̍t-lí sèng-chit Siòng
kò͘-thé Iûⁿ-tiám
923 K (650 °C, 1202 °F) Hut-tiám
1363 K (1091 °C, 1994 °F) Bi̍t-tō͘ (sek-un )
1.738 g·cm−3
1.584 g·cm−3 Iûⁿ-hoà-jia̍t
8.48 kJ·mol−1 Cheng-hoat-jia̍t
128 kJ·mol−1 Jia̍t-iông-liōng
24.869 J·mol−1 ·K−1
cheng-khì-ap
P (Pa)
1
10
100
1 k
10 k
100 k
tī T (K)
701
773
861
971
1132
1361
Goân-chú sèng-chit Sng-hòa-sò͘
+2 , +1[ 3] (a strongly basic oxide) Tiān-hū-tō͘
Pauling scale: 1.31 Tiān-lī-lêng
1st: 737.7 kJ·mol−1 2nd: 1450.7 kJ·mol−1 3rd: 7732.7 kJ·mol−1 (more ) Goân-chú pòaⁿ-kèng
empirical: 160 pm Kiōng-kè pòaⁿ-kèng
141±7 pm Van der Waals pòaⁿ-kèng
173 pm Cha̍p-lio̍k Chiⁿ-thé kò͘-chō
hexagonal close-packed (hcp) Siaⁿ-sok (sòe kùn-á)
4940 m·s−1 (at r.t. ) (annealed) Jia̍t-phòng-tiòng
24.8 µm·m−1 ·K−1 (at 25 °C) Jia̍t-thoân-tō-lu̍t
156 W·m−1 ·K−1 Tiān-chó͘-lu̍t
43.9 nΩ·m (at 20 °C) Chû-sèng
paramagnetic Young hē-sò͘
45 GPa Shear hē-sò͘
17 GPa Bulk hē-sò͘
45 GPa Poisson pí
0.290 Mohs ngē-tō͘
1–2.5 Brinell ngē-tō͘
44–260 MPa CAS teng-kì pian-hō
7439-95-4 Le̍k-sú Hō-miâ
after Magnesia , Greece Hoat-hiān
Joseph Black (1755) Siōng chá hû-lî
Humphry Davy (1808) Chòe ún-tēng ê tông-ūi-sò͘
Chú bûn-chiong: magnesium ê tông-ūi-sò͘
Magnesium , ia̍h-sī kiò chò khó͘-thó͘ (苦土)[ 4] , sī chi̍t khoán hoà-ha̍k goân-sò͘ , hû-hō sī Mg , goân-chú-hoan 12, sio̍k tē-jī cho̍k , ia̍h-tio̍h-sī alkali-thô͘ kim-sio̍k (alkaline earth metal ).
Chham-khó