Kak (Fa-ho̍k ngièn-su)

Kak 鎘,  ₄₈Cd

ngoi-kôn
silvery bluish-gray metallic
Kî-pún sin-sit
Miàng, fù-ho	Kak 鎘, Cd
ngoi-hìn	silvery bluish-gray metallic
Kak 鎘 chhai chû-khì-péu ke vi-chi
Zn ↑ Cd ↓ Hg ngiùn ← Kak 鎘 → indium
ngièn-chṳ́ sì-sú	48
ngièn-chṳ́-liòng (±)	112.414(4)
ngièn-su lui-phe̍t	ko-thu kîm-su̍k, alternatively considered a post-transition metal
Chhu̍k, fûn-khî	12 chhu̍k, d-block
chû-khì	period 5
thien-chṳ́ phài-lie̍t	[Kr] 4d10 5s2
per shell	2, 8, 18, 18, 2
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	594.22 K ​(321.07 °C, ​609.93 °F)
pui-tiám	1040 K ​(767 °C, ​1413 °F)
Me̍t-thu near Sit-vûn	8.65 g·cm−3
7.996 g·cm−3
Yùng-fa-ngie̍t	6.21 kJ·mol−1
Chîn-fat-ngie̍t	99.87 kJ·mol−1
Ngie̍t-yùng-liong	26.020 J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 530 583 654 745 867 1040
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	2, 1, −2 ​(a mildly basic oxide)
Thien-fu-sin	Pauling scale: 1.69
Thien-lì-nèn	1st: 867.8 kJ·mol−1 2nd: 1631.4 kJ·mol−1 3rd: 3616 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 151 pm
Khiung-ka pan-kang	144±9 pm
Van der Waals pan-kang	158 pm
Miscellanea
Chîn-thí keu-chho	​hexagonal close-packed (hcp)
Sâng-suk thin rod	2310 m·s−1 (at 20 °C)
Ngie̍t-phàng-chong	30.8 µm·m−1·K−1 (at 25 °C)
Ngie̍t-chhòn-thô-li̍t	96.6 W·m−1·K−1
Thien-chú-li̍t	72.7 nΩ·m (at 22 °C)
Chhṳ̀-sin	diamagnetic
Young's modulus	50 GPa
Shear modulus	19 GPa
Bulk modulus	42 GPa
Poisson ratio	0.30
Mohs hardness	2.0
Brinell hardness	203–220 MPa
CAS Registry Number	7440-43-9
Le̍k-sú
Hoat-kiàn kap siōng chá ê tông-ūi-sò͘	Karl Samuel Leberecht Hermann and Friedrich Stromeyer (1817)
Named by	Friedrich Stromeyer (1817)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Kak 鎘 ke thùng-vi-su
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 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

Kak (鎘) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Cd, ngièn-chṳ́ su-muk he 48.