Scandium

Scandium
	21Sc
	calcium ← scandium → titanium
Ìhànsójú
	silvery white;
Àwọn ìdámọ́ wíwọ́pọ̀
Orúkọ, àmì-ìdámọ́, nọ́mbà	scandium, Sc, 21
Ẹ̀ka ẹ́límẹ̀nti	transition metal
Ẹgbẹ́, àsìkò, àdìpò	3, 4, d
Ìwúwo átọ́mù	44.955912(6)
Ìtòléra ẹ̀lẹ́ktrónì	[Ar] 3d1 4s2; 2, 8, 9, 2
Physical properties
Phase	solid
Density (near r.t.)	2.985 g·cm−3
Liquid density at m.p.	2.80 g·cm−3
Melting point	1814 K, 1541 °C, 2806 °F
Boiling point	3109 K, 2836 °C, 5136 °F
Heat of fusion	14.1 kJ·mol−1
Heat of vaporization	332.7 kJ·mol−1
Molar heat capacity	25.52 J·mol−1·K−1
Vapor pressure
Atomic properties
Oxidation states	3, 2, 1 ; (weakly basic oxide)
Electronegativity	1.36 (Pauling scale)
Ionization energies; (more)	1st: 633.1 kJ·mol−1
	2nd: 1235.0 kJ·mol−1
	3rd: 2388.6 kJ·mol−1
Atomic radius	162 pm
Covalent radius	170±7 pm
Van der Waals radius	211 pm
Miscellanea
Crystal structure	hexagonal
Magnetic ordering	paramagnetic
Electrical resistivity	(r.t.) (α, poly); calc. 562 nΩ·m
Thermal conductivity	15.8 W·m−1·K−1
Thermal expansion	(r.t.) (α, poly); 10.2 µm/(m·K)
Young's modulus	74.4 GPa
Shear modulus	29.1 GPa
Bulk modulus	56.6 GPa
Poisson ratio	0.279
Brinell hardness	750 MPa
CAS registry number	7440-20-2
Àwọn ísótòpù dídúró jùlọ
	Main article: Àwọn ísótòpù scandium
	w; ọ; a; · r

Àyọkà yìí tàbí apá rẹ̀ únfẹ́ àtúnṣe sí.

Ẹ le fẹ̀ jù báyìí lọ tàbí kí ẹ ṣàtúnṣe rẹ̀ lọ́nà tí yíò mu kúnrẹ́rẹ́. Ẹ ran Wikipedia lọ́wọ́ láti fẹ̀ẹ́ jù báyìí lọ.

Itokasi [àtúnṣe]

↑ McGuire, Joseph C.; Kempter, Charles P. (1960). "Preparation and Properties of Scandium Dihydride". Journal of Chemical Physics 33: 1584–1585. doi:10.1063/1.1731452.
↑ Smith, R. E. (1973). "Diatomic Hydride and Deuteride Spectra of the Second Row Transition Metals". Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences 332 (1588): 113–127. doi:10.1098/rspa.1973.0015.