Tellurium

Tellurium (Hon-ngî: 碲 dì) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Te, ngièn-chṳ́ su-muk he 52.

Tellurium,  ₅₂Te

ngoi-kôn
silvery lustrous gray (crystalline), brown-black powder (amorphous)
Kî-pún sin-sit
Miàng, fù-ho	Tellurium, Te
ngoi-hìn	silvery lustrous gray (crystalline), brown-black powder (amorphous)
Tellurium chhai chû-khì-péu ke vi-chi
Se ↑ Te ↓ Po antimony ← Tellurium → tién
ngièn-chṳ́ sì-sú	52
ngièn-chṳ́-liòng (±)	127.60(3)
ngièn-su lui-phe̍t	lui-kîm-su̍k
Chhu̍k, fûn-khî	16 chhu̍k, p-block
chû-khì	period 5
thien-chṳ́ phài-lie̍t	[Kr] 4d10 5s2 5p4
per shell	2, 8, 18, 18, 6
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	722.66 K ​(449.51 °C, ​841.12 °F)
pui-tiám	1261 K ​(988 °C, ​1810 °F)
Me̍t-thu near Sit-vûn	6.24 g·cm−3
5.70 g·cm−3
Yùng-fa-ngie̍t	17.49 kJ·mol−1
Chîn-fat-ngie̍t	114.1 kJ·mol−1
Ngie̍t-yùng-liong	25.73 J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K)   (775) (888) 1042 1266
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	6, 5, 4, 3, 2, 1, −1, −2 ​(a mildly acidic oxide)
Thien-fu-sin	Pauling scale: 2.1
Thien-lì-nèn	1st: 869.3 kJ·mol−1 2nd: 1790 kJ·mol−1 3rd: 2698 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 140 pm
Khiung-ka pan-kang	138±4 pm
Van der Waals pan-kang	206 pm
Miscellanea
Chîn-thí keu-chho	​hexagonal
Sâng-suk thin rod	2610 m·s−1 (at 20 °C)
Ngie̍t-phàng-chong	18 µm·m−1·K−1 (at r.t.)
Ngie̍t-chhòn-thô-li̍t	1.97–3.38 W·m−1·K−1
Chhṳ̀-sin	diamagnetic
Young's modulus	43 GPa
Shear modulus	16 GPa
Bulk modulus	65 GPa
Mohs hardness	2.25
Brinell hardness	180–270 MPa
CAS Registry Number	13494-80-9
Le̍k-sú
Hí-miàng	after Roman Tellus, deity of the Earth
Fat-hien	Franz-Joseph Müller von Reichenstein (1782)
First isolation	Martin Heinrich Klaproth
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Tellurium ke thùng-vi-su
iso NA half-life DM DE (MeV) DP 120Te 0.09% >2.2×1016 y (β+β+) 1.701 120Sn 121Te syn 16.78 d ε 1.040 121Sb 122Te 2.55% – (SF) <30.974 123Te 0.89% >9.2×1016 y (ε) 0.051 123Sb 124Te 4.74% – (SF) <28.221 125Te 7.07% – (SF) <26.966 126Te 18.84% – (SF) <26.011 127Te syn 9.35 h β− 0.698 127I 128Te 31.74% 2.2×1024 y β−β− 0.867 128Xe 129Te syn 69.6 min β− 1.498 129I 130Te 34.08% 7.9×1020 y β−β− 2.528 130Xe
Decay modes in parentheses are predicted, but have not yet been observed