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tantalum

Input interpretation

tantalum (chemical element)
tantalum (chemical element)

Periodic table location

Periodic table location
Periodic table location

Image

Image
Image

Basic elemental properties

atomic symbol | Ta atomic number | 73 short electronic configuration | [Xe]6s^24f^145d^3 Aufbau diagram | 5d 4f 6s block | d group | 5 period | 6 atomic mass | 180.94788 u (unified atomic mass units)
atomic symbol | Ta atomic number | 73 short electronic configuration | [Xe]6s^24f^145d^3 Aufbau diagram | 5d 4f 6s block | d group | 5 period | 6 atomic mass | 180.94788 u (unified atomic mass units)

Thermodynamic properties

phase at STP | solid melting point | 3017 °C (rank: 5th) boiling point | 5458 °C (rank: 3rd) molar heat of fusion | 36 kJ/mol (rank: 4th) molar heat of vaporization | 735 kJ/mol (rank: 2nd) specific heat at STP | 140 J/(kg K) (rank: 71st) (properties at standard conditions)
phase at STP | solid melting point | 3017 °C (rank: 5th) boiling point | 5458 °C (rank: 3rd) molar heat of fusion | 36 kJ/mol (rank: 4th) molar heat of vaporization | 735 kJ/mol (rank: 2nd) specific heat at STP | 140 J/(kg K) (rank: 71st) (properties at standard conditions)

Material properties

density | 16.65 g/cm^3 (rank: 10th) liquid density | 15 g/cm^3 molar volume | 10.868 cm^3/mol Mohs hardness | 6.5 (between microcline and quartz) Vickers hardness | 873 MPa (rank: 21st) Brinell hardness | 800 MPa (rank: 17th) bulk modulus | 200 GPa (rank: 10th) shear modulus | 69 GPa Young's modulus | 186 GPa (rank: 14th) Poisson ratio | 0.34 (rank: 12th) sound speed | 3400 m/s (rank: 28th) thermal expansion | 6.3×10^-6 K^(-1) (rank: 53rd) thermal conductivity | 57 W/(m K) (rank: 31st) (properties at standard conditions)
density | 16.65 g/cm^3 (rank: 10th) liquid density | 15 g/cm^3 molar volume | 10.868 cm^3/mol Mohs hardness | 6.5 (between microcline and quartz) Vickers hardness | 873 MPa (rank: 21st) Brinell hardness | 800 MPa (rank: 17th) bulk modulus | 200 GPa (rank: 10th) shear modulus | 69 GPa Young's modulus | 186 GPa (rank: 14th) Poisson ratio | 0.34 (rank: 12th) sound speed | 3400 m/s (rank: 28th) thermal expansion | 6.3×10^-6 K^(-1) (rank: 53rd) thermal conductivity | 57 W/(m K) (rank: 31st) (properties at standard conditions)

Electromagnetic properties

electrical type | conductor resistivity | 1.3×10^-7 Ω m (ohm meters) electrical conductivity | 7.7×10^6 S/m (siemens per meter) magnetic type | paramagnetic volume magnetic susceptibility | 1.782×10^-4 mass magnetic susceptibility | 1.07×10^-8 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | 1.936×10^-9 m^3/mol (cubic meters per mole) work function | (4 to 4.8) eV threshold frequency | (9.672×10^14 to 1.161×10^15) Hz (hertz) superconducting point | 4.47 K (kelvins) color | (gray) (work function range from 4 different crystalline orientations)
electrical type | conductor resistivity | 1.3×10^-7 Ω m (ohm meters) electrical conductivity | 7.7×10^6 S/m (siemens per meter) magnetic type | paramagnetic volume magnetic susceptibility | 1.782×10^-4 mass magnetic susceptibility | 1.07×10^-8 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | 1.936×10^-9 m^3/mol (cubic meters per mole) work function | (4 to 4.8) eV threshold frequency | (9.672×10^14 to 1.161×10^15) Hz (hertz) superconducting point | 4.47 K (kelvins) color | (gray) (work function range from 4 different crystalline orientations)

Reactivity

valence | 5 electronegativity | 1.5 electron affinity | 31 kJ/mol (kilojoules per mole) first ionization energy | 761 kJ/mol (kilojoules per mole) ionization energies | 761 kJ/mol | 1500 kJ/mol
valence | 5 electronegativity | 1.5 electron affinity | 31 kJ/mol (kilojoules per mole) first ionization energy | 761 kJ/mol (kilojoules per mole) ionization energies | 761 kJ/mol | 1500 kJ/mol
Reactivity
Reactivity

Atomic properties

term symbol | ^4F_(3/2) atomic radius | 145 pm covalent radius | 170 pm (electronic ground state properties)
term symbol | ^4F_(3/2) atomic radius | 145 pm covalent radius | 170 pm (electronic ground state properties)
(neutral tantalum atomic spectrum)
(neutral tantalum atomic spectrum)

Abundances

universe abundance | 8×10^-9 mass% (rank: 83rd) meteorite abundance | 2×10^-6 mass% (rank: 77th) crust abundance | 1.7×10^-4 mass% (rank: 53rd) ocean abundance | 2×10^-10 mass% (rank: 57th) universe molar abundance | 6×10^-11 mol% (rank: 82nd) meteorite molar abundance | 2×10^-7 mol% (rank: 77th) ocean molar abundance | 6.8×10^-12 mol% (rank: 70th) crust molar abundance | 1.9×10^-5 mol% (rank: 55th)
universe abundance | 8×10^-9 mass% (rank: 83rd) meteorite abundance | 2×10^-6 mass% (rank: 77th) crust abundance | 1.7×10^-4 mass% (rank: 53rd) ocean abundance | 2×10^-10 mass% (rank: 57th) universe molar abundance | 6×10^-11 mol% (rank: 82nd) meteorite molar abundance | 2×10^-7 mol% (rank: 77th) ocean molar abundance | 6.8×10^-12 mol% (rank: 70th) crust molar abundance | 1.9×10^-5 mol% (rank: 55th)

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