Tantalyo

Tantalum
	73Ta
	hafnium ← tantalum → tungsten
Panagway
	gray blue;
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan	tantalum, Ta, 73
Paglitok	/ˈtæntələm/ ; [[Help:Pronunciation respelling key\|Plantilya:Smallcaps all-təl-əm]];; previously /tænˈtæliəm/ ; [[Help:Pronunciation respelling key\|tan-Plantilya:Smallcaps all-ee-əm]]
Kategoriyang elemento	puthaw nga transisyon
Group, period, block	5, 6, d
Gibug-aton sa atomo	180.94788
Kontorno sa elektron	[Xe] 4f14 5d3 6s2; 2, 8, 18, 32, 11, 2 Electron shells of tantalum (2, 8, 18, 32, 11, 2)
History
Pagkadiskobre	Anders Gustaf Ekeberg (1802)
Recognized as a distinct element by	Heinrich Rose (1844)
Physical properties
Phase	magahi
Density (near r.t.)	16.69 g·cm−3
Liquid density at m.p.	15 g·cm−3
Melting point	3290 K, 3017 °C, 5463 °F
Boiling point	5731 K, 5458 °C, 9856 °F
Heat of fusion	36.57 kJ·mol−1
Heat of vaporization	732.8 kJ·mol−1
Molar heat capacity	25.36 J·mol−1·K−1
Vapor pressure
Atomic properties
Oxidation states	5, 4, 3, 2, -1 (mildly acidic oxide)
Electronegativity	1.5 (Pauling scale)
Ionization energies	1st: 761 kJ·mol−1
	2nd: 1500 kJ·mol−1
Atomic radius	146 pm
Covalent radius	170±8 pm
Miscellanea
Crystal structure	body-centered cubic ; α-Ta
	tetragonal ; β-Ta
Magnetic ordering	paramagnetic
Electrical resistivity	(20 °C) 131 nΩ·m
Thermal conductivity	57.5 W·m−1·K−1
Thermal expansion	(25 °C) 6.3 µm·m−1·K−1
Speed of sound (thin rod)	(20 °C) 3400 m·s−1
Young's modulus	186 GPa
Shear modulus	69 GPa
Bulk modulus	200 GPa
Poisson ratio	0.34
Mohs hardness	6.5
Vickers hardness	873 MPa
Brinell hardness	800 MPa
CAS registry number	7440-25-7
Most stable isotopes
	Main article: Isotopes of tantalum
	v; t; e; · r

Ang tantalyo (Iningles tantalum) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Ta ug kaiphan nga atomik 73. Ang tantalyo mao ang puthaw nga transisyon.

Ang mga gi basihan niini

Galeriya sa hulagway

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