Scandium

Scandium,  ₂₁Sc

Ki-pún sèng-chit
Miâ, hû-hō	scandium, Sc
Gōa-hêng	silvery white
Scandium tī chiu-kî-piáu lāi ê ūi-tì
– ↑ Sc ↓ Y Khā-lú-siúm ← scandium → titanium
Goân-chú-hoan	21
Goân-chú-liōng (±)	44.955908(5)
Goân-sò͘ lūi-pia̍t	kòe-tō͘ kim-sio̍k
Cho̍k, hun-khu	3 cho̍k, d khu
Chiu-kî	tē 4 chiu-kî
Tiān-chú pâi-lia̍t	[Ar] 3d1 4s2
per shell	2, 8, 9, 2
Bu̍t-lí sèng-chit
Siòng	kò͘-thé
Iûⁿ-tiám	1814 K ​(1541 °C, ​2806 °F)
Hut-tiám	3109 K ​(2836 °C, ​5136 °F)
Bi̍t-tō͘  (sek-un)	2.985 g·cm−3
2.80 g·cm−3
Iûⁿ-hoà-jia̍t	14.1 kJ·mol−1
Cheng-hoat-jia̍t	332.7 kJ·mol−1
Jia̍t-iông-liōng	25.52 J·mol−1·K−1
cheng-khì-ap P (Pa) 1 10 100 1 k 10 k 100 k tī T (K) 1645 1804 (2006) (2266) (2613) (3101)
Goân-chú sèng-chit
Sng-hòa-sò͘	3, 2, 1 ​(an amphoteric oxide)
Tiān-hū-tō͘	Pauling scale: 1.36
Tiān-lī-lêng	1st: 633.1 kJ·mol−1 2nd: 1235.0 kJ·mol−1 3rd: 2388.6 kJ·mol−1 (more)
Goân-chú pòaⁿ-kèng	empirical: 162 pm
Kiōng-kè pòaⁿ-kèng	170±7 pm
Van der Waals pòaⁿ-kèng	211 pm
Cha̍p-lio̍k
Chiⁿ-thé kò͘-chō	​hexagonal close-packed (hcp)
Jia̍t-phòng-tiòng	α, poly: 10.2 µm·m−1·K−1 (at r.t.)
Jia̍t-thoân-tō-lu̍t	15.8 W·m−1·K−1
Tiān-chó͘-lu̍t	α, poly: 562 nΩ·m (at r.t., calculated)
Chû-sèng	paramagnetic
Young hē-sò͘	74.4 GPa
Shear hē-sò͘	29.1 GPa
Bulk hē-sò͘	56.6 GPa
Poisson pí	0.279
Brinell ngē-tō͘	736–1200 MPa
CAS teng-kì pian-hō	7440-20-2
Le̍k-sú
Hō-miâ	after Scandinavia
Chhui-chhek	Dmitri Mendeleev (1871)
Hoat-hiān kap siōng chá ê tông-ūi-sò͘	Lars Fredrik Nilson (1879)
Chòe ún-tēng ê tông-ūi-sò͘
Chú bûn-chiong: scandium ê tông-ūi-sò͘
iso NA half-life DM DE (MeV) DP 44m2Sc syn 58.61 h IT 0.2709 44Sc γ 1.0, 1.1, 1.1 44Sc ε – 44Ca 45Sc 100% 45Sc is stable with 24 neutrons 46Sc syn 83.79 d β− 0.3569 46Ti γ 0.889, 1.120 – 47Sc syn 3.3492 d β− 0.44, 0.60 47Ti γ 0.159 – 48Sc syn 43.67 h β− 0.661 48Ti γ 0.9, 1.3, 1.0 –

Scandium sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 21, hoà-ha̍k hû-hō sī Sc.