carbon, hydrogen, osmium

carbon (chemical element) | hydrogen (chemical element) | osmium (chemical element)

Periodic table location

Images

| carbon | hydrogen | osmium atomic symbol | C | H | Os atomic number | 6 | 1 | 76 short electronic configuration | [He]2s^22p^2 | 1s^1 | [Xe]6s^24f^145d^6 Aufbau diagram | 2p 2s | 1s | 5d 4f 6s block | p | s | d group | 14 | 1 | 8 period | 2 | 1 | 6 atomic mass | 12.011 u | 1.008 u | 190.23 u half-life | (stable) | (stable) | (stable)

| carbon | hydrogen | osmium phase at STP | solid | gas | solid melting point | 3550 °C | -259.14 °C | 3033 °C boiling point | 4027 °C | -252.87 °C | 5012 °C critical temperature | | 32.97 K | critical pressure | | 1.293 MPa | molar heat of fusion | 105 kJ/mol | 0.558 kJ/mol | 31 kJ/mol molar heat of vaporization | 715 kJ/mol | 0.452 kJ/mol | 630 kJ/mol specific heat at STP | 710 J/(kg K) | 14300 J/(kg K) | 130 J/(kg K) adiabatic index | | 7/5 | (properties at standard conditions)

| carbon | hydrogen | osmium density | 2.26 g/cm^3 | 8.99×10^-5 g/cm^3 | 22.59 g/cm^3 liquid density | | | 20 g/cm^3 molar volume | 5.315 cm^3/mol | 11200 cm^3/mol | 8.421 cm^3/mol Mohs hardness | 0.5 (between talc and gypsum) | | 7 (≈ quartz) Vickers hardness | | | 4140 MPa Brinell hardness | | | 3920 MPa bulk modulus | 33 GPa | | shear modulus | | | 222 GPa Poisson ratio | | | 0.25 refractive index | 2.417 | 1.000132 | sound speed | 18350 m/s | 1270 m/s | 4940 m/s thermal expansion | 7.1×10^-6 K^(-1) | | 5.1×10^-6 K^(-1) thermal conductivity | 140 W/(m K) | 0.1805 W/(m K) | 88 W/(m K) (properties at standard conditions)

| carbon | hydrogen | osmium electrical type | conductor | | conductor resistivity | 1×10^-5 Ω m (ohm meters) | | 8.1×10^-8 Ω m (ohm meters) electrical conductivity | 100000 S/m (siemens per meter) | | 1.2×10^7 S/m (siemens per meter) magnetic type | diamagnetic | diamagnetic | paramagnetic volume magnetic susceptibility | -1.4×10^-5 | -2.23×10^-9 | 1.4×10^-5 mass magnetic susceptibility | -6.2×10^-9 m^3/kg (cubic meters per kilogram) | -2.48×10^-8 m^3/kg (cubic meters per kilogram) | 6×10^-10 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -7.45×10^-11 m^3/mol (cubic meters per mole) | -4.999×10^-11 m^3/mol (cubic meters per mole) | 1.1×10^-10 m^3/mol (cubic meters per mole) work function | 5 eV (Polycrystalline) | | 5.93 eV (Polycrystalline) threshold frequency | 1.209×10^15 Hz (hertz) | | 1.434×10^15 Hz (hertz) superconducting point | | | 0.66 K (kelvins) color | (black) | (colorless) | (slate gray) refractive index | 2.417 | 1.000132 |

| carbon | hydrogen | osmium valence | 4 | 1 | 6 electronegativity | 2.55 | 2.2 | 2.2 electron affinity | 153.9 kJ/mol (kilojoules per mole) | 72.8 kJ/mol (kilojoules per mole) | 106.1 kJ/mol (kilojoules per mole) first ionization energy | 1086.5 kJ/mol (kilojoules per mole) | 1312 kJ/mol (kilojoules per mole) | 840 kJ/mol (kilojoules per mole) ionization energies | 1086.5 kJ/mol | 2352.6 kJ/mol | 4620.5 kJ/mol | 6222.7 kJ/mol | 37831 kJ/mol | 47277 kJ/mol | 1312 kJ/mol | 840 kJ/mol | 1600 kJ/mol

Reactivity

| carbon | hydrogen | osmium term symbol | ^3P_0 | ^2S_(1/2) | ^5D_4 atomic radius | 70 pm | 25 pm | 130 pm covalent radius | 76 pm | 31 pm | 144 pm van der Waals radius | 170 pm | 120 pm | (electronic ground state properties)

| carbon | hydrogen | osmium universe abundance | 0.5 mass% | 75 mass% | 3×10^-7 mass% solar abundance | 0.3 mass% | 75 mass% | 2×10^-7 mass% meteorite abundance | 1.5 mass% | 2.4 mass% | 6.6×10^-5 mass% crust abundance | 0.18 mass% | 0.15 mass% | 1.8×10^-7 mass% ocean abundance | 0.0028 mass% | 11 mass% | human abundance | 23 mass% | 10 mass% | universe molar abundance | 0.05 mol% | 93 mol% | 2×10^-9 mol% solar molar abundance | 0.03 mol% | 93 mol% | 2×10^-9 mol% meteorite molar abundance | 1.8 mol% | 17 mol% | 7×10^-6 mol% ocean molar abundance | 0.0014 mol% | 66 mol% | crust molar abundance | 0.31 mol% | 3.1 mol% | 2×10^-8 mol% human molar abundance | 12 mol% | 62 mol% |