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element types of iron silicide

Input interpretation

iron silicide | element types
iron silicide | element types

Result

iron | silicon
iron | silicon

Periodic table location

Periodic table location
Periodic table location

Images

Images
Images

Basic elemental properties

| iron | silicon atomic symbol | Fe | Si atomic number | 26 | 14 short electronic configuration | [Ar]4s^23d^6 | [Ne]3s^23p^2 Aufbau diagram | 3d 4s | 3p 3s block | d | p group | 8 | 14 period | 4 | 3 atomic mass | 55.845 u | 28.085 u half-life | (stable) | (stable)
| iron | silicon atomic symbol | Fe | Si atomic number | 26 | 14 short electronic configuration | [Ar]4s^23d^6 | [Ne]3s^23p^2 Aufbau diagram | 3d 4s | 3p 3s block | d | p group | 8 | 14 period | 4 | 3 atomic mass | 55.845 u | 28.085 u half-life | (stable) | (stable)

Thermodynamic properties

| iron | silicon phase at STP | solid | solid melting point | 1538 °C | 1414 °C boiling point | 2861 °C | 2900 °C molar heat of fusion | 13.8 kJ/mol | 50.2 kJ/mol molar heat of vaporization | 347 kJ/mol | 359 kJ/mol specific heat at STP | 449 J/(kg K) | 710 J/(kg K) (properties at standard conditions)
| iron | silicon phase at STP | solid | solid melting point | 1538 °C | 1414 °C boiling point | 2861 °C | 2900 °C molar heat of fusion | 13.8 kJ/mol | 50.2 kJ/mol molar heat of vaporization | 347 kJ/mol | 359 kJ/mol specific heat at STP | 449 J/(kg K) | 710 J/(kg K) (properties at standard conditions)

Material properties

| iron | silicon density | 7.874 g/cm^3 | 2.33 g/cm^3 liquid density | 6.98 g/cm^3 | 2.57 g/cm^3 molar volume | 7.092 cm^3/mol | 12.05 cm^3/mol Mohs hardness | 4 (≈ fluorite) | 6.5 (between microcline and quartz) Vickers hardness | 608 MPa | 9630 MPa Brinell hardness | 490 MPa | bulk modulus | 170 GPa | 100 GPa shear modulus | 82 GPa | Young's modulus | 211 GPa | 47 GPa Poisson ratio | 0.29 | tensile yield strength | 50 MPa | sound speed | 4910 m/s | 2200 m/s thermal expansion | 1.18×10^-5 K^(-1) | 2.6×10^-6 K^(-1) thermal conductivity | 80 W/(m K) | 150 W/(m K) (properties at standard conditions)
| iron | silicon density | 7.874 g/cm^3 | 2.33 g/cm^3 liquid density | 6.98 g/cm^3 | 2.57 g/cm^3 molar volume | 7.092 cm^3/mol | 12.05 cm^3/mol Mohs hardness | 4 (≈ fluorite) | 6.5 (between microcline and quartz) Vickers hardness | 608 MPa | 9630 MPa Brinell hardness | 490 MPa | bulk modulus | 170 GPa | 100 GPa shear modulus | 82 GPa | Young's modulus | 211 GPa | 47 GPa Poisson ratio | 0.29 | tensile yield strength | 50 MPa | sound speed | 4910 m/s | 2200 m/s thermal expansion | 1.18×10^-5 K^(-1) | 2.6×10^-6 K^(-1) thermal conductivity | 80 W/(m K) | 150 W/(m K) (properties at standard conditions)

Electromagnetic properties

| iron | silicon electrical type | conductor | semiconductor resistivity | 9.7×10^-8 Ω m (ohm meters) | 0.001 Ω m (ohm meters) electrical conductivity | 1×10^7 S/m (siemens per meter) | 1000 S/m (siemens per meter) magnetic type | ferromagnetic | diamagnetic volume magnetic susceptibility | | -3.73×10^-6 mass magnetic susceptibility | | -1.6×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | | -4.49×10^-11 m^3/mol (cubic meters per mole) Curie point | 1043 K (kelvins) | work function | (4.67 to 4.81) eV | (4.6 to 4.91) eV threshold frequency | (1.129×10^15 to 1.163×10^15) Hz (hertz) | (1.112×10^15 to 1.187×10^15) Hz (hertz) color | (gray) | (gray)
| iron | silicon electrical type | conductor | semiconductor resistivity | 9.7×10^-8 Ω m (ohm meters) | 0.001 Ω m (ohm meters) electrical conductivity | 1×10^7 S/m (siemens per meter) | 1000 S/m (siemens per meter) magnetic type | ferromagnetic | diamagnetic volume magnetic susceptibility | | -3.73×10^-6 mass magnetic susceptibility | | -1.6×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | | -4.49×10^-11 m^3/mol (cubic meters per mole) Curie point | 1043 K (kelvins) | work function | (4.67 to 4.81) eV | (4.6 to 4.91) eV threshold frequency | (1.129×10^15 to 1.163×10^15) Hz (hertz) | (1.112×10^15 to 1.187×10^15) Hz (hertz) color | (gray) | (gray)

Reactivity

| iron | silicon valence | 3 | 4 electronegativity | 1.83 | 1.9 electron affinity | 15.7 kJ/mol (kilojoules per mole) | 133.6 kJ/mol (kilojoules per mole) first ionization energy | 762.5 kJ/mol (kilojoules per mole) | 786.5 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 | 786.5 kJ/mol | 1577.1 kJ/mol | 3231.6 kJ/mol | 4355.5 kJ/mol | 16091 kJ/mol | 19805 kJ/mol | 23780 kJ/mol | 29287 kJ/mol | 33878 kJ/mol | 38726 kJ/mol
| iron | silicon valence | 3 | 4 electronegativity | 1.83 | 1.9 electron affinity | 15.7 kJ/mol (kilojoules per mole) | 133.6 kJ/mol (kilojoules per mole) first ionization energy | 762.5 kJ/mol (kilojoules per mole) | 786.5 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 | 786.5 kJ/mol | 1577.1 kJ/mol | 3231.6 kJ/mol | 4355.5 kJ/mol | 16091 kJ/mol | 19805 kJ/mol | 23780 kJ/mol | 29287 kJ/mol | 33878 kJ/mol | 38726 kJ/mol
Reactivity
Reactivity

Atomic properties

| iron | silicon term symbol | ^5D_4 | ^3P_0 atomic radius | 140 pm | 110 pm covalent radius | 132 pm | 111 pm van der Waals radius | (unknown) | 210 pm (electronic ground state properties)
| iron | silicon term symbol | ^5D_4 | ^3P_0 atomic radius | 140 pm | 110 pm covalent radius | 132 pm | 111 pm van der Waals radius | (unknown) | 210 pm (electronic ground state properties)

Abundances

| iron | silicon universe abundance | 0.11 mass% | 0.07 mass% solar abundance | 0.1 mass% | 0.09 mass% meteorite abundance | 22 mass% | 14 mass% crust abundance | 6.3 mass% | 27 mass% ocean abundance | 3×10^-7 mass% | 1×10^-4 mass% human abundance | 0.006 mass% | 0.026 mass% universe molar abundance | 0.002 mol% | 0.003 mol% solar molar abundance | 0.003 mol% | 0.004 mol% meteorite molar abundance | 7.8 mol% | 10 mol% ocean molar abundance | 3.3×10^-8 mol% | 2.2×10^-5 mol% crust molar abundance | 2.3 mol% | 20 mol% human molar abundance | 6.7×10^-4 mol% | 0.0058 mol%
| iron | silicon universe abundance | 0.11 mass% | 0.07 mass% solar abundance | 0.1 mass% | 0.09 mass% meteorite abundance | 22 mass% | 14 mass% crust abundance | 6.3 mass% | 27 mass% ocean abundance | 3×10^-7 mass% | 1×10^-4 mass% human abundance | 0.006 mass% | 0.026 mass% universe molar abundance | 0.002 mol% | 0.003 mol% solar molar abundance | 0.003 mol% | 0.004 mol% meteorite molar abundance | 7.8 mol% | 10 mol% ocean molar abundance | 3.3×10^-8 mol% | 2.2×10^-5 mol% crust molar abundance | 2.3 mol% | 20 mol% human molar abundance | 6.7×10^-4 mol% | 0.0058 mol%

Nuclear properties

| iron | silicon half-life | (stable) | (stable) stable isotopes | Fe-56 (91.754%) | Fe-54 (5.845%) | Fe-57 (2.119%) | Fe-58 (0.282%) | Si-28 (92.23%) | Si-29 (4.683%) | Si-30 (3.087%) nuclear spin | Fe-45: 3/2^+ | Fe-46: 0^+ | Fe-47: 7/2^- | Fe-48: 0^+ | Fe-49: 7/2^- | Fe-50: 0^+ | Fe-51: 5/2^- | Fe-52: 0^+ | Fe-53: 7/2^- | Fe-54: 0^+ | Fe-55: 3/2^- | Fe-56: 0^+ | Fe-57: 1/2^- | Fe-58: 0^+ | Fe-59: 3/2^- | Fe-60: 0^+ | Fe-62: 0^+ | Fe-63: 5/2^- | Fe-64: 0^+ | Fe-65: 1/2^- | Fe-66: 0^+ | Fe-67: 5/2^+ | Fe-68: 0^+ | Fe-69: 1/2^- | Fe-70: 0^+ | Fe-71: 7/2^+ | Fe-72: 0^+ | Si-22: 0^+ | Si-23: 5/2^+ | Si-24: 0^+ | Si-25: 5/2^+ | Si-26: 0^+ | Si-27: 5/2^+ | Si-28: 0^+ | Si-29: 1/2^+ | Si-30: 0^+ | Si-31: 3/2^+ | Si-32: 0^+ | Si-33: 3/2^+ | Si-34: 0^+ | Si-35: 7/2^- | Si-36: 0^+ | Si-37: 7/2^- | Si-38: 0^+ | Si-39: 7/2^- | Si-40: 0^+ | Si-41: 7/2^- | Si-42: 0^+ | Si-43: 3/2^- | Si-44: 0^+ unstable isotopes | Fe-60 (2.6 Myr) | Fe-55 (2.737 yr) | Fe-59 (44.495 days) | Fe-52 (8.275 h) | Fe-53 (8.52 min) | Fe-61 (5.98 min) | Fe-62 (68 s) | Fe-63 (6.1 s) | Fe-64 (2 s) | Fe-65 (1.3 s) | Fe-67 (600 ms) | Fe-66 (440 ms) | Fe-51 (305 ms) | Fe-68 (187 ms) | Fe-50 (155 ms) | Fe-69 (109 ms) | Fe-70 (94 ms) | Fe-49 (64.7 ms) | Fe-48 (44 ms) | Fe-47 (21.8 ms) | Fe-46 (12 ms) | Fe-45 (1.89 ms) | Fe-72 (150 ns) | Fe-71 (150 ns) | Si-32 (153 yr) | Si-31 (157.3 min) | Si-33 (6.11 s) | Si-27 (4.16 s) | Si-34 (2.77 s) | Si-26 (2.234 s) | Si-35 (780 ms) | Si-36 (450 ms) | Si-25 (220 ms) | Si-24 (140 ms) | Si-37 (90 ms) | Si-39 (47.5 ms) | Si-23 (42.3 ms) | Si-40 (33 ms) | Si-22 (29 ms) | Si-41 (20 ms) | Si-42 (12.5 ms) | Si-38 (1 µs) | Si-44 (360 ns) | Si-43 (60 ns) neutron cross-section | 2.56 b | 0.166 b neutron mass absorption | 0.0015 m^2/kg | 2×10^-4 m^2/kg
| iron | silicon half-life | (stable) | (stable) stable isotopes | Fe-56 (91.754%) | Fe-54 (5.845%) | Fe-57 (2.119%) | Fe-58 (0.282%) | Si-28 (92.23%) | Si-29 (4.683%) | Si-30 (3.087%) nuclear spin | Fe-45: 3/2^+ | Fe-46: 0^+ | Fe-47: 7/2^- | Fe-48: 0^+ | Fe-49: 7/2^- | Fe-50: 0^+ | Fe-51: 5/2^- | Fe-52: 0^+ | Fe-53: 7/2^- | Fe-54: 0^+ | Fe-55: 3/2^- | Fe-56: 0^+ | Fe-57: 1/2^- | Fe-58: 0^+ | Fe-59: 3/2^- | Fe-60: 0^+ | Fe-62: 0^+ | Fe-63: 5/2^- | Fe-64: 0^+ | Fe-65: 1/2^- | Fe-66: 0^+ | Fe-67: 5/2^+ | Fe-68: 0^+ | Fe-69: 1/2^- | Fe-70: 0^+ | Fe-71: 7/2^+ | Fe-72: 0^+ | Si-22: 0^+ | Si-23: 5/2^+ | Si-24: 0^+ | Si-25: 5/2^+ | Si-26: 0^+ | Si-27: 5/2^+ | Si-28: 0^+ | Si-29: 1/2^+ | Si-30: 0^+ | Si-31: 3/2^+ | Si-32: 0^+ | Si-33: 3/2^+ | Si-34: 0^+ | Si-35: 7/2^- | Si-36: 0^+ | Si-37: 7/2^- | Si-38: 0^+ | Si-39: 7/2^- | Si-40: 0^+ | Si-41: 7/2^- | Si-42: 0^+ | Si-43: 3/2^- | Si-44: 0^+ unstable isotopes | Fe-60 (2.6 Myr) | Fe-55 (2.737 yr) | Fe-59 (44.495 days) | Fe-52 (8.275 h) | Fe-53 (8.52 min) | Fe-61 (5.98 min) | Fe-62 (68 s) | Fe-63 (6.1 s) | Fe-64 (2 s) | Fe-65 (1.3 s) | Fe-67 (600 ms) | Fe-66 (440 ms) | Fe-51 (305 ms) | Fe-68 (187 ms) | Fe-50 (155 ms) | Fe-69 (109 ms) | Fe-70 (94 ms) | Fe-49 (64.7 ms) | Fe-48 (44 ms) | Fe-47 (21.8 ms) | Fe-46 (12 ms) | Fe-45 (1.89 ms) | Fe-72 (150 ns) | Fe-71 (150 ns) | Si-32 (153 yr) | Si-31 (157.3 min) | Si-33 (6.11 s) | Si-27 (4.16 s) | Si-34 (2.77 s) | Si-26 (2.234 s) | Si-35 (780 ms) | Si-36 (450 ms) | Si-25 (220 ms) | Si-24 (140 ms) | Si-37 (90 ms) | Si-39 (47.5 ms) | Si-23 (42.3 ms) | Si-40 (33 ms) | Si-22 (29 ms) | Si-41 (20 ms) | Si-42 (12.5 ms) | Si-38 (1 µs) | Si-44 (360 ns) | Si-43 (60 ns) neutron cross-section | 2.56 b | 0.166 b neutron mass absorption | 0.0015 m^2/kg | 2×10^-4 m^2/kg

Identifiers

| iron | silicon CAS number | 7439-89-6 | 7440-21-3 PubChem CID number | 23925 | 5461123
| iron | silicon CAS number | 7439-89-6 | 7440-21-3 PubChem CID number | 23925 | 5461123

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