Tantalum

Tantalum, ₇₃Ta
	Spectral lines of tantalum
Ki-pún sèng-chit
Miâ, hû-hō	tantalum, Ta
Gōa-hêng	gray blue
Tantalum tī chiu-kî-piáu lāi ê ūi-tì
	hafnium ← tantalum → wolfram
Goân-chú-hoan	73
Goân-chú-liōng (±)	180.94788(2)
Goân-sò͘ lūi-pia̍t	kòe-tō͘ kim-sio̍k
Cho̍k, hun-khu	5 cho̍k, d khu
Chiu-kî	tē 6 chiu-kî
Tiān-chú pâi-lia̍t	[Xe] 4f14 5d3 6s2
per shell	2, 8, 18, 32, 11, 2
Bu̍t-lí sèng-chit
Siòng	solid
Iûⁿ-tiám	3290 K (3017 °C, 5463 °F)
Hut-tiám	5731 K (5458 °C, 9856 °F)
Bi̍t-tō͘ (sek-un)	16.69 g·cm−3
	15 g·cm−3
Iûⁿ-hoà-jia̍t	36.57 kJ·mol−1
Cheng-hoat-jia̍t	753 kJ·mol−1
Jia̍t-iông-liōng	25.36 J·mol−1·K−1
Goân-chú sèng-chit
Sng-hòa-sò͘	5, 4, 3, 2, 1, −1, −3 (a mildly acidic oxide)
Tiān-hū-tō͘	Pauling scale: 1.5
Tiān-lī-lêng	1st: 761 kJ·mol−1 ; 2nd: 1500 kJ·mol−1
Goân-chú pòaⁿ-kèng	empirical: 146 pm
Kiōng-kè pòaⁿ-kèng	170±8 pm
Cha̍p-lio̍k
Chiⁿ-thé kò͘-chō	body-centered cubic (bcc) ; α-Ta
Chiⁿ-thé kò͘-chō	tetragonal ; β-Ta
Siaⁿ-sok (sòe kùn-á)	3400 m·s−1 (at 20 °C)
Jia̍t-phòng-tiòng	6.3 µm·m−1·K−1 (at 25 °C)
Jia̍t-thoân-tō-lu̍t	57.5 W·m−1·K−1
Tiān-chó͘-lu̍t	131 nΩ·m (at 20 °C)
Chû-sèng	paramagnetic
Young hē-sò͘	186 GPa
Shear hē-sò͘	69 GPa
Bulk hē-sò͘	200 GPa
Poisson pí	0.34
Mohs ngē-tō͘	6.5
Vickers ngē-tō͘	870–1200 MPa
Brinell ngē-tō͘	440–3430 MPa
CAS teng-kì pian-hō	7440-25-7
Le̍k-sú
Hoat-hiān	Anders Gustaf Ekeberg (1802)
Recognized as a distinct element by	Heinrich Rose (1844)
Chòe ún-tēng ê tông-ūi-sò͘
	Chú bûn-chiong: tantalum ê tông-ūi-sò͘
	Decay modes in parentheses are predicted, but have not yet been observed

Tantalum sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 73, hoà-ha̍k hû-hō sī Ta.

Chham-khó

↑ Standard Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights
↑ ^2.0 ^2.1 Moseley, P. T.; Seabrook, C. J. (1973). "The crystal structure of β-tantalum". Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 29 (5): 1170–1171. doi:10.1107/S0567740873004140.
↑ Lide, D. R., pian. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th pán.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5. Archived from the original on 2011-03-03. 2016-06-10 khòaⁿ--ê. CS1 maint: Unfit url (link)

Pún bûn-chiuⁿ sī chi̍t phiⁿ phí-á-kiáⁿ. Lí thang tàu khok-chhiong lâi pang-chō͘ Wikipedia.

[IUPAC-1] Standard Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights

[crystal_structure-2] 2.0 ^2.1 Moseley, P. T.; Seabrook, C. J. (1973). "The crystal structure of β-tantalum". Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 29 (5): 1170–1171. doi:10.1107/S0567740873004140.

[magnet-3] Lide, D. R., pian. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th pán.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5. Archived from the original on 2011-03-03. 2016-06-10 khòaⁿ--ê. CS1 maint: Unfit url (link)

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