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iron

Input interpretation

iron (chemical element)
iron (chemical element)

Periodic table location

Periodic table location
Periodic table location

Image

Image
Image

Basic elemental properties

atomic symbol | Fe atomic number | 26 short electronic configuration | [Ar]4s^23d^6 Aufbau diagram | 3d 4s block | d group | 8 period | 4 atomic mass | 55.845 u (unified atomic mass units)
atomic symbol | Fe atomic number | 26 short electronic configuration | [Ar]4s^23d^6 Aufbau diagram | 3d 4s block | d group | 8 period | 4 atomic mass | 55.845 u (unified atomic mass units)

Thermodynamic properties

phase at STP | solid melting point | 1538 °C (rank: 26th) boiling point | 2861 °C (rank: 39th) molar heat of fusion | 13.8 kJ/mol (rank: 36th) molar heat of vaporization | 347 kJ/mol (rank: 30th) specific heat at STP | 449 J/(kg K) (rank: 26th) (properties at standard conditions)
phase at STP | solid melting point | 1538 °C (rank: 26th) boiling point | 2861 °C (rank: 39th) molar heat of fusion | 13.8 kJ/mol (rank: 36th) molar heat of vaporization | 347 kJ/mol (rank: 30th) specific heat at STP | 449 J/(kg K) (rank: 26th) (properties at standard conditions)

Material properties

density | 7.874 g/cm^3 (rank: 42nd) liquid density | 6.98 g/cm^3 molar volume | 7.092 cm^3/mol Mohs hardness | 4 (≈ fluorite) Vickers hardness | 608 MPa (rank: 25th) Brinell hardness | 490 MPa (rank: 31st) bulk modulus | 170 GPa (rank: 14th) shear modulus | 82 GPa Young's modulus | 211 GPa (rank: 9th) Poisson ratio | 0.29 (rank: 25th) tensile yield strength | 50 MPa (rank: 27th) sound speed | 4910 m/s (rank: 14th) thermal expansion | 1.18×10^-5 K^(-1) (rank: 30th) thermal conductivity | 80 W/(m K) (rank: 25th) (properties at standard conditions)
density | 7.874 g/cm^3 (rank: 42nd) liquid density | 6.98 g/cm^3 molar volume | 7.092 cm^3/mol Mohs hardness | 4 (≈ fluorite) Vickers hardness | 608 MPa (rank: 25th) Brinell hardness | 490 MPa (rank: 31st) bulk modulus | 170 GPa (rank: 14th) shear modulus | 82 GPa Young's modulus | 211 GPa (rank: 9th) Poisson ratio | 0.29 (rank: 25th) tensile yield strength | 50 MPa (rank: 27th) sound speed | 4910 m/s (rank: 14th) thermal expansion | 1.18×10^-5 K^(-1) (rank: 30th) thermal conductivity | 80 W/(m K) (rank: 25th) (properties at standard conditions)

Electromagnetic properties

electrical type | conductor resistivity | 9.7×10^-8 Ω m (ohm meters) electrical conductivity | 1×10^7 S/m (siemens per meter) magnetic type | ferromagnetic Curie point | 1043 K (kelvins) work function | (4.67 to 4.81) eV threshold frequency | (1.129×10^15 to 1.163×10^15) Hz (hertz) color | (gray) (work function range from 2 different crystalline orientations)
electrical type | conductor resistivity | 9.7×10^-8 Ω m (ohm meters) electrical conductivity | 1×10^7 S/m (siemens per meter) magnetic type | ferromagnetic Curie point | 1043 K (kelvins) work function | (4.67 to 4.81) eV threshold frequency | (1.129×10^15 to 1.163×10^15) Hz (hertz) color | (gray) (work function range from 2 different crystalline orientations)

Reactivity

valence | 3 electronegativity | 1.83 electron affinity | 15.7 kJ/mol (kilojoules per mole) first ionization energy | 762.5 kJ/mol (kilojoules per mole) ionization energies | 762.5 kJ/mol | 1561.9 kJ/mol | 2957 kJ/mol | 5290 kJ/mol | 7240 kJ/mol | 9560 kJ/mol | 12060 kJ/mol | 14580 kJ/mol | 22540 kJ/mol | 25290 kJ/mol | 28000 kJ/mol | 31920 kJ/mol | 34830 kJ/mol | 37840 kJ/mol | 44100 kJ/mol | 47206 kJ/mol | 122200 kJ/mol | 131000 kJ/mol | 140500 kJ/mol | 152600 kJ/mol | 163000 kJ/mol
valence | 3 electronegativity | 1.83 electron affinity | 15.7 kJ/mol (kilojoules per mole) first ionization energy | 762.5 kJ/mol (kilojoules per mole) ionization energies | 762.5 kJ/mol | 1561.9 kJ/mol | 2957 kJ/mol | 5290 kJ/mol | 7240 kJ/mol | 9560 kJ/mol | 12060 kJ/mol | 14580 kJ/mol | 22540 kJ/mol | 25290 kJ/mol | 28000 kJ/mol | 31920 kJ/mol | 34830 kJ/mol | 37840 kJ/mol | 44100 kJ/mol | 47206 kJ/mol | 122200 kJ/mol | 131000 kJ/mol | 140500 kJ/mol | 152600 kJ/mol | 163000 kJ/mol
Reactivity
Reactivity

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