Zirconium

Zirconium,  ₄₀Zr

Ki-pún sèng-chit
Miâ, hû-hō	zirconium, Zr
Gōa-hêng	silvery white
Zirconium tī chiu-kî-piáu lāi ê ūi-tì
Ti ↑ Zr ↓ Hf yttrium ← zirconium → niobium
Goân-chú-hoan	40
Goân-chú-liōng (±)	91.224(2)
Goân-sò͘ lūi-pia̍t	kòe-tō͘ kim-sio̍k
Cho̍k, hun-khu	4 cho̍k, d khu
Chiu-kî	tē 5 chiu-kî
Tiān-chú pâi-lia̍t	[Kr] 4d2 5s2
per shell	2, 8, 18, 10, 2
Bu̍t-lí sèng-chit
Siòng	solid
Iûⁿ-tiám	2128 K ​(1855 °C, ​3371 °F)
Hut-tiám	4650 K ​(4377 °C, ​7911 °F)
Bi̍t-tō͘  (sek-un)	6.52 g·cm−3
5.8 g·cm−3
Iûⁿ-hoà-jia̍t	14 kJ·mol−1
Cheng-hoat-jia̍t	591 kJ·mol−1
Jia̍t-iông-liōng	25.36 J·mol−1·K−1
cheng-khì-ap P (Pa) 1 10 100 1 k 10 k 100 k tī T (K) 2639 2891 3197 3575 4053 4678
Goân-chú sèng-chit
Sng-hòa-sò͘	4, 3, 2, 1, −2 ​(an amphoteric oxide)
Tiān-hū-tō͘	Pauling scale: 1.33
Tiān-lī-lêng	1st: 640.1 kJ·mol−1 2nd: 1270 kJ·mol−1 3rd: 2218 kJ·mol−1
Goân-chú pòaⁿ-kèng	empirical: 160 pm
Kiōng-kè pòaⁿ-kèng	175±7 pm
Cha̍p-lio̍k
Chiⁿ-thé kò͘-chō	​hexagonal close-packed (hcp)
Siaⁿ-sok (sòe kùn-á)	3800 m·s−1 (at 20 °C)
Jia̍t-phòng-tiòng	5.7 µm·m−1·K−1 (at 25 °C)
Jia̍t-thoân-tō-lu̍t	22.6 W·m−1·K−1
Tiān-chó͘-lu̍t	421 nΩ·m (at 20 °C)
Chû-sèng	paramagnetic
Young hē-sò͘	88 GPa
Shear hē-sò͘	33 GPa
Bulk hē-sò͘	91.1 GPa
Poisson pí	0.34
Mohs ngē-tō͘	5.0
Vickers ngē-tō͘	820–1800 MPa
Brinell ngē-tō͘	638–1880 MPa
CAS teng-kì pian-hō	7440-67-7
Le̍k-sú
Hō-miâ	after zircon, zargun زرگون meaning "gold-colored".
Hoat-hiān	Martin Heinrich Klaproth (1789)
Siōng chá hû-lî	Jöns Jakob Berzelius (1824)
Chòe ún-tēng ê tông-ūi-sò͘
Chú bûn-chiong: zirconium ê tông-ūi-sò͘
iso NA half-life DM DE (MeV) DP 88Zr syn 83.4 d ε – 88Y γ 0.392D – 89Zr syn 78.4 h ε – 89Y β+ 0.902 89Y γ 0.909D – 90Zr 51.45% 90Zr is stable with 50 neutrons 91Zr 11.22% 91Zr is stable with 51 neutrons 92Zr 17.15% 92Zr is stable with 52 neutrons 93Zr trace 1.53×106 y β− 0.060 93Nb 94Zr 17.38% >1.1×1017 y (β−β−) 1.144 94Mo 96Zr 2.8% 2.0×1019 y β−β− 3.348 96Mo (β−) – 96Nb
Decay modes in parentheses are predicted, but have not yet been observed

Zirconium, kì-hō sī Zr, sī chi̍t khoán hoà-ha̍k goân-sò͘.