Xenon

Xenon,  ₅₄Xe

ngoi-kôn
colorless gas, exhibiting a blue glow when placed in a high voltage electric field A xenon-filled discharge tube glowing light blue Spectral lines of xenon
Kî-pún sin-sit
Miàng, fù-ho	Xenon, Xe
ngoi-hìn	colorless gas, exhibiting a blue glow when placed in a high voltage electric field
Xenon chhai chû-khì-péu ke vi-chi
Kr ↑ Xe ↓ Rn tién ← Xenon → caesium
ngièn-chṳ́ sì-sú	54
ngièn-chṳ́-liòng (±)	131.293(6)[1]
ngièn-su lui-phe̍t	hî-yù hi-thí
Chhu̍k, fûn-khî	18 chhu̍k, p-block
chû-khì	period 5
thien-chṳ́ phài-lie̍t	[Kr] 4d10 5s2 5p6
per shell	2, 8, 18, 18, 8
vu̍t-lî sin-chṳt
Siông	hi-thí
yùng-tiám	161.40 K ​(−111.75 °C, ​−169.15 °F)
pui-tiám	165.051 K ​(−108.099 °C, ​−162.578 °F)
me̍t-thu at stp (0 °C and 101.325 kPa)	5.894 g·L−1
2.942 g·cm−3[2]
Sâm-siong-tiám	161.405 K, ​81.77 kPa[3]
lìm-kie-tiám	289.733 K, 5.842 MPa[3]
Yùng-fa-ngie̍t	2.27 kJ·mol−1
Chîn-fat-ngie̍t	12.64 kJ·mol−1
Ngie̍t-yùng-liong	21.01[4] J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 83 92 103 117 137 165
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	0, +1, +2, +4, +6, +8 ​(rarely more than 0; a weakly acidic oxide)
Thien-fu-sin	Pauling scale: 2.6
Thien-lì-nèn	1st: 1170.4 kJ·mol−1 2nd: 2046.4 kJ·mol−1 3rd: 3099.4 kJ·mol−1
Khiung-ka pan-kang	140±9 pm
Van der Waals pan-kang	216 pm
Miscellanea
Chîn-thí keu-chho	​face-centered cubic (fcc)
Sâng-suk	gas: 169 m·s−1 liquid: 1090 m·s−1
Ngie̍t-chhòn-thô-li̍t	5.65×10−3 W·m−1·K−1
Chhṳ̀-sin	diamagnetic[5]
CAS Registry Number	7440-63-3
Le̍k-sú
Discovery and first isolation	William Ramsay and Morris Travers (1898)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Xenon ke thùng-vi-su
iso NA half-life DM DE (MeV) DP 124Xe 0.095% >4.8×1016 y (β+β+) 0.825 124Te 125Xe syn 16.9 h ε 1.652 125I 126Xe 0.089% – (β+β+) 0.8973 126Te 127Xe syn 36.345 d ε 0.662 127I 128Xe 1.91% – (SF) <35.047 129Xe 26.4% – (SF) <33.947 130Xe 4.07% – (SF) <32.483 131Xe 21.2% – (SF) <31.140 132Xe 26.9% – (SF) <30.885 133Xe syn 5.247 d β− 0.427 133Cs 134Xe 10.4% >1.1×1016 y (β−β−) 0.819 134Ba 135Xe syn 9.14 h β− 1.16 135Cs 136Xe 8.86% 2.165×1021 y[6] β−β− 2.45783[7] 136Ba
Decay modes in parentheses are predicted, but have not yet been observed

Xenon (Hon-ngî: 氙 xiān) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Xe, ngièn-chṳ́ su-muk he 54.