Magnesium

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
Magnesium chhai chû-khì-péu ke vi-chi
Be ↑ Mg ↓ Ca Na̍p ← magnesium → Lî
ngièn-chṳ́ sì-sú	12
ngièn-chṳ́-liòng	24.305 (24.304–24.307)
ngièn-su lui-phe̍t	kán-thú kîm-su̍k
Chhu̍k, fûn-khî	2 chhu̍k, s-block
chû-khì	period 3
thien-chṳ́ phài-lie̍t	[Ne] 3s2
per shell	2, 8, 2
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	923 K ​(650 °C, ​1202 °F)
pui-tiám	1363 K ​(1091 °C, ​1994 °F)
Me̍t-thu near Sit-vûn	1.738 g·cm−3
1.584 g·cm−3
Yùng-fa-ngie̍t	8.48 kJ·mol−1
Chîn-fat-ngie̍t	128 kJ·mol−1
Ngie̍t-yùng-liong	24.869 J·mol−1·K−1
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
Yông-fa-su	+2, +1 ​(a strongly basic oxide)
Thien-fu-sin	Pauling scale: 1.31
Thien-lì-nèn	1st: 737.7 kJ·mol−1 2nd: 1450.7 kJ·mol−1 3rd: 7732.7 kJ·mol−1 (more)
Ngièn-chṳ́ pan-kang	empirical: 160 pm
Khiung-ka pan-kang	141±7 pm
Van der Waals pan-kang	173 pm
Miscellanea
Chîn-thí keu-chho	​hexagonal close-packed (hcp)
Sâng-suk thin rod	4940 m·s−1 (at r.t.) (annealed)
Ngie̍t-phàng-chong	24.8 µm·m−1·K−1 (at 25 °C)
Ngie̍t-chhòn-thô-li̍t	156 W·m−1·K−1
Thien-chú-li̍t	43.9 nΩ·m (at 20 °C)
Chhṳ̀-sin	paramagnetic
Young's modulus	45 GPa
Shear modulus	17 GPa
Bulk modulus	45 GPa
Poisson ratio	0.290
Mohs hardness	1–2.5
Brinell hardness	44–260 MPa
CAS Registry Number	7439-95-4
Le̍k-sú
Hí-miàng	after Magnesia, Greece
Fat-hien	Joseph Black (1755)
First isolation	Humphry Davy (1808)
Chui vún-thin ke thùng-vi-su
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

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.