Input interpretation
barium hydroxide | element types
Result
barium | hydrogen | oxygen
Periodic table location
Periodic table location
Images
Images
Basic elemental properties
| barium | hydrogen | oxygen atomic symbol | Ba | H | O atomic number | 56 | 1 | 8 short electronic configuration | [Xe]6s^2 | 1s^1 | [He]2s^22p^4 Aufbau diagram | 6s | 1s | 2p 2s block | s | s | p group | 2 | 1 | 16 period | 6 | 1 | 2 atomic mass | 137.327 u | 1.008 u | 15.999 u half-life | (stable) | (stable) | (stable)
Thermodynamic properties
| barium | hydrogen | oxygen phase at STP | solid | gas | gas melting point | 727 °C | -259.14 °C | -218.3 °C boiling point | 1870 °C | -252.87 °C | -182.9 °C critical temperature | (unknown) | 32.97 K | 154.59 K critical pressure | (unknown) | 1.293 MPa | 5.043 MPa molar heat of fusion | 8 kJ/mol | 0.558 kJ/mol | 0.222 kJ/mol molar heat of vaporization | 140 kJ/mol | 0.452 kJ/mol | 3.41 kJ/mol specific heat at STP | 205 J/(kg K) | 14300 J/(kg K) | 919 J/(kg K) adiabatic index | | 7/5 | 7/5 (properties at standard conditions)
Material properties
| barium | hydrogen | oxygen density | 3.51 g/cm^3 | 8.99×10^-5 g/cm^3 | 0.001429 g/cm^3 liquid density | 3.338 g/cm^3 | | molar volume | 39.12 cm^3/mol | 11200 cm^3/mol | 11200 cm^3/mol Mohs hardness | 1.25 (between talc and gypsum) | | bulk modulus | 9.6 GPa | | shear modulus | 4.9 GPa | | Young's modulus | 13 GPa | | refractive index | (unknown) | 1.000132 | 1.000271 sound speed | 1620 m/s | 1270 m/s | 317.5 m/s thermal expansion | 2.06×10^-5 K^(-1) | | thermal conductivity | 18 W/(m K) | 0.1805 W/(m K) | 0.02658 W/(m K) (properties at standard conditions)
Electromagnetic properties
| barium | hydrogen | oxygen electrical type | conductor | | resistivity | 3.5×10^-7 Ω m (ohm meters) | | electrical conductivity | 2.9×10^6 S/m (siemens per meter) | | magnetic type | paramagnetic | diamagnetic | paramagnetic volume magnetic susceptibility | 3.966×10^-5 | -2.23×10^-9 | 1.90772×10^-6 mass magnetic susceptibility | 1.13×10^-8 m^3/kg (cubic meters per kilogram) | -2.48×10^-8 m^3/kg (cubic meters per kilogram) | 1.335×10^-6 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | 1.552×10^-9 m^3/mol (cubic meters per mole) | -4.999×10^-11 m^3/mol (cubic meters per mole) | 4.27184×10^-8 m^3/mol (cubic meters per mole) work function | 2.52 eV (Polycrystalline) | | threshold frequency | 6.093×10^14 Hz (hertz) | | color | (silver) | (colorless) | (colorless) refractive index | (unknown) | 1.000132 | 1.000271
Reactivity
| barium | hydrogen | oxygen valence | 2 | 1 | 2 electronegativity | 0.89 | 2.2 | 3.44 electron affinity | 13.95 kJ/mol (kilojoules per mole) | 72.8 kJ/mol (kilojoules per mole) | 141 kJ/mol (kilojoules per mole) first ionization energy | 502.9 kJ/mol (kilojoules per mole) | 1312 kJ/mol (kilojoules per mole) | 1313.9 kJ/mol (kilojoules per mole) ionization energies | 502.9 kJ/mol | 965.2 kJ/mol | 3600 kJ/mol | 1312 kJ/mol | 1313.9 kJ/mol | 3388.3 kJ/mol | 5300.5 kJ/mol | 7469.2 kJ/mol | 10989.5 kJ/mol | 13326.5 kJ/mol | 71330 kJ/mol | 84078 kJ/mol
Reactivity
Atomic properties
| barium | hydrogen | oxygen term symbol | ^1S_0 | ^2S_(1/2) | ^3P_2 atomic radius | 215 pm | 25 pm | 60 pm covalent radius | 215 pm | 31 pm | 66 pm van der Waals radius | (unknown) | 120 pm | 152 pm (electronic ground state properties)
Abundances
| barium | hydrogen | oxygen universe abundance | 1×10^-6 mass% | 75 mass% | 1 mass% solar abundance | 1×10^-6 mass% | 75 mass% | 0.9 mass% meteorite abundance | 2.7×10^-4 mass% | 2.4 mass% | 40 mass% crust abundance | 0.034 mass% | 0.15 mass% | 46 mass% ocean abundance | 3×10^-6 mass% | 11 mass% | 86 mass% human abundance | 3×10^-5 mass% | 10 mass% | 61 mass% universe molar abundance | 9×10^-9 mol% | 93 mol% | 0.08 mol% solar molar abundance | 9.9×10^-9 mol% | 93 mol% | 0.07 mol% meteorite molar abundance | 4.1×10^-5 mol% | 17 mol% | 48 mol% ocean molar abundance | 1.4×10^-7 mol% | 66 mol% | 33 mol% crust molar abundance | 0.0051 mol% | 3.1 mol% | 60 mol% human molar abundance | 1.4×10^-6 mol% | 62 mol% | 24 mol%