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Yttrium,  ₃₉Y

ngoi-kôn
silvery white
Kî-pún sin-sit
Miàng, fù-ho	Yttrium, Y
ngoi-hìn	silvery white
Yttrium chhai chû-khì-péu ke vi-chi
Sc ↑ Y ↓ Lu strontium ← Yttrium → zirconium
ngièn-chṳ́ sì-sú	39
ngièn-chṳ́-liòng (±)	88.90584(2)[1]
ngièn-su lui-phe̍t	ko-thu kîm-su̍k
Chhu̍k, fûn-khî	3 chhu̍k, d-block
chû-khì	period 5
thien-chṳ́ phài-lie̍t	[Kr] 4d1 5s2
per shell	2, 8, 18, 9, 2
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	1799 K ​(1526 °C, ​2779 °F)
pui-tiám	3203 K ​(2930 °C, ​5306 °F)
Me̍t-thu near Sit-vûn	4.472 g·cm−3
4.24 g·cm−3
Yùng-fa-ngie̍t	11.42 kJ·mol−1
Chîn-fat-ngie̍t	363 kJ·mol−1
Ngie̍t-yùng-liong	26.53 J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 1883 2075 (2320) (2627) (3036) (3607)
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	3, 2, 1 ​(a weakly basic oxide)
Thien-fu-sin	Pauling scale: 1.22
Thien-lì-nèn	1st: 600 kJ·mol−1 2nd: 1180 kJ·mol−1 3rd: 1980 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 180 pm
Khiung-ka pan-kang	190±7 pm
Miscellanea
Chîn-thí keu-chho	​hexagonal close-packed (hcp)
Sâng-suk thin rod	3300 m·s−1 (at 20 °C)
Ngie̍t-phàng-chong	α, poly: 10.6 µm·m−1·K−1 (at r.t.)
Ngie̍t-chhòn-thô-li̍t	17.2 W·m−1·K−1
Thien-chú-li̍t	α, poly: 596 nΩ·m (at r.t.)
Chhṳ̀-sin	paramagnetic[2]
Young's modulus	63.5 GPa
Shear modulus	25.6 GPa
Bulk modulus	41.2 GPa
Poisson ratio	0.243
Brinell hardness	200–589 MPa
CAS Registry Number	7440-65-5
Le̍k-sú
Hí-miàng	after Ytterby, Sweden and its mineral ytterbite (gadolinite)
Fat-hien	Johan Gadolin (1794)
First isolation	Carl Gustav Mosander (1840)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Yttrium ke thùng-vi-su
iso NA half-life DM DE (MeV) DP 87Y syn 3.35 d ε – 87Sr γ 0.48, 0.38D – 88Y syn 106.6 d ε – 88Sr γ 1.83, 0.89 – 89Y 100% 89Y is stable with 50 neutrons 90Y syn 2.67 d β− 2.28 90Zr γ 2.18 – 91Y syn 58.5 d β− 1.54 91Zr γ 1.20 –

Yttrium (Hon-ngî: 釔 yǐ) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Y, ngièn-chṳ́ su-muk he 39.