Cadmium

Cadmium sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 48, hoà-ha̍k hû-hō sī Cd.

Cadmium,  ₄₈Cd

Ki-pún sèng-chit
Miâ, hû-hō	cadmium, Cd
Gōa-hêng	silvery bluish-gray metallic
Cadmium tī chiu-kî-piáu lāi ê ūi-tì
Zn ↑ Cd ↓ Hg gîn ← cadmium → indium
Goân-chú-hoan	48
Goân-chú-liōng (±)	112.414(4)
Goân-sò͘ lūi-pia̍t	kòe-tō͘ kim-sio̍k alternatively considered a post-transition metal
Cho̍k, hun-khu	12 cho̍k, d khu
Chiu-kî	tē 5 chiu-kî
Tiān-chú pâi-lia̍t	[Kr] 4d10 5s2
per shell	2, 8, 18, 18, 2
Bu̍t-lí sèng-chit
Siòng	solid
Iûⁿ-tiám	594.22 K ​(321.07 °C, ​609.93 °F)
Hut-tiám	1040 K ​(767 °C, ​1413 °F)
Bi̍t-tō͘  (sek-un)	8.65 g·cm−3
7.996 g·cm−3
Iûⁿ-hoà-jia̍t	6.21 kJ·mol−1
Cheng-hoat-jia̍t	99.87 kJ·mol−1
Jia̍t-iông-liōng	26.020 J·mol−1·K−1
cheng-khì-ap P (Pa) 1 10 100 1 k 10 k 100 k tī T (K) 530 583 654 745 867 1040
Goân-chú sèng-chit
Sng-hòa-sò͘	2, 1, −2 ​(a mildly basic oxide)
Tiān-hū-tō͘	Pauling scale: 1.69
Tiān-lī-lêng	1st: 867.8 kJ·mol−1 2nd: 1631.4 kJ·mol−1 3rd: 3616 kJ·mol−1
Goân-chú pòaⁿ-kèng	empirical: 151 pm
Kiōng-kè pòaⁿ-kèng	144±9 pm
Van der Waals pòaⁿ-kèng	158 pm
Cha̍p-lio̍k
Chiⁿ-thé kò͘-chō	​hexagonal close-packed (hcp)
Siaⁿ-sok (sòe kùn-á)	2310 m·s−1 (at 20 °C)
Jia̍t-phòng-tiòng	30.8 µm·m−1·K−1 (at 25 °C)
Jia̍t-thoân-tō-lu̍t	96.6 W·m−1·K−1
Tiān-chó͘-lu̍t	72.7 nΩ·m (at 22 °C)
Chû-sèng	diamagnetic
Young hē-sò͘	50 GPa
Shear hē-sò͘	19 GPa
Bulk hē-sò͘	42 GPa
Poisson pí	0.30
Mohs ngē-tō͘	2.0
Brinell ngē-tō͘	203–220 MPa
CAS teng-kì pian-hō	7440-43-9
Le̍k-sú
Hoat-hiān kap siōng chá ê tông-ūi-sò͘	Karl Samuel Leberecht Hermann and Friedrich Stromeyer (1817)
hō-miâ	Friedrich Stromeyer (1817)
Chòe ún-tēng ê tông-ūi-sò͘
Chú bûn-chiong: cadmium ê tông-ūi-sò͘
iso NA half-life DM DE (MeV) DP 106Cd 1.25% >4.1×1020 y (β+β+) 2.770 106Pd 107Cd syn 6.5 h ε 1.417 107Ag 108Cd 0.89% >4.1×1017 y (β+β+) 0.272 108Pd 109Cd syn 462.6 d ε 0.214 109Ag 110Cd 12.49% – (SF) <22.486 111Cd 12.8% – (SF) <21.883 112Cd 24.13% – (SF) <20.733 113Cd 12.22% 7.7×1015 y β− 0.316 113In 113mCd syn 14.1 y β− 0.580 113In IT 0.264 113Cd 114Cd 28.73% >6.4×1018 y (β−β−) 0.540 114Sn 115Cd syn 53.46 h β− 1.446 115In 116Cd 7.49% 3.1×1019 y β−β− 2.809 116Sn
Decay modes in parentheses are predicted, but have not yet been observed