Palladium

Palladium (Hon-ngî: 鈀 bǎ) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Pd, ngièn-chṳ́ su-muk he 46.

Palladium,  ₄₆Pd

ngoi-kôn
silvery white
Kî-pún sin-sit
Miàng, fù-ho	Palladium, Pd
ngoi-hìn	silvery white
Palladium chhai chû-khì-péu ke vi-chi
Ni ↑ Pd ↓ Pt rhodium ← Palladium → ngiùn
ngièn-chṳ́ sì-sú	46
ngièn-chṳ́-liòng (±)	106.42(1)
ngièn-su lui-phe̍t	ko-thu kîm-su̍k
Chhu̍k, fûn-khî	10 chhu̍k, d-block
chû-khì	period 5
thien-chṳ́ phài-lie̍t	[Kr] 4d10
per shell	2, 8, 18, 18
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	1828.05 K ​(1554.9 °C, ​2830.82 °F)
pui-tiám	3236 K ​(2963 °C, ​5365 °F)
Me̍t-thu near Sit-vûn	12.023 g·cm−3
10.38 g·cm−3
Yùng-fa-ngie̍t	16.74 kJ·mol−1
Chîn-fat-ngie̍t	358 kJ·mol−1
Ngie̍t-yùng-liong	25.98 J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 1721 1897 2117 2395 2753 3234
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	0, +1, +2, +3, +4, +5, +6 ​(a mildly basic oxide)
Thien-fu-sin	Pauling scale: 2.20
Thien-lì-nèn	1st: 804.4 kJ·mol−1 2nd: 1870 kJ·mol−1 3rd: 3177 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 137 pm
Khiung-ka pan-kang	139±6 pm
Van der Waals pan-kang	163 pm
Miscellanea
Chîn-thí keu-chho	​face-centered cubic (fcc)
Sâng-suk thin rod	3070 m·s−1 (at 20 °C)
Ngie̍t-phàng-chong	11.8 µm·m−1·K−1 (at 25 °C)
Ngie̍t-chhòn-thô-li̍t	71.8 W·m−1·K−1
Thien-chú-li̍t	105.4 nΩ·m (at 20 °C)
Chhṳ̀-sin	paramagnetic
Young's modulus	121 GPa
Shear modulus	44 GPa
Bulk modulus	180 GPa
Poisson ratio	0.39
Mohs hardness	4.75
Vickers hardness	400–600 MPa
Brinell hardness	320–610 MPa
CAS Registry Number	7440-05-3
Le̍k-sú
Hí-miàng	after asteroid Pallas, itself named after Pallas Athena
Hoat-kiàn kap siōng chá ê tông-ūi-sò͘	William Hyde Wollaston (1803)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Palladium ke thùng-vi-su
iso NA half-life DM DE (MeV) DP 100Pd syn 3.63 d ε – 100Rh γ 0.084, 0.074, 0.126 – 102Pd 1.02% – (β+β+) 1.1720 102Ru 103Pd syn 16.991 d ε – 103Rh 104Pd 11.14% – (SF) <18.969 105Pd 22.33% – (SF) <18.247 106Pd 27.33% – (SF) <16.806 107Pd trace 6.5×106 y β− 0.033 107Ag 108Pd 26.46% – (SF) <16.102 110Pd 11.72% >6×1017 y β−β− 1.9997 110Cd
Decay modes in parentheses are predicted, but have not yet been observed