barium vs hydrogen vs strontium

barium (chemical element) | hydrogen (chemical element) | strontium (chemical element)

Periodic table location

Images

| barium | hydrogen | strontium atomic symbol | Ba | H | Sr atomic number | 56 | 1 | 38 short electronic configuration | [Xe]6s^2 | 1s^1 | [Kr]5s^2 Aufbau diagram | 6s | 1s | 5s block | s | s | s group | 2 | 1 | 2 period | 6 | 1 | 5 atomic mass | 137.327 u | 1.008 u | 87.62 u half-life | (stable) | (stable) | (stable)

| barium | hydrogen | strontium phase at STP | solid | gas | solid melting point | 727 °C | -259.14 °C | 777 °C boiling point | 1870 °C | -252.87 °C | 1382 °C critical temperature | (unknown) | 32.97 K | critical pressure | (unknown) | 1.293 MPa | molar heat of fusion | 8 kJ/mol | 0.558 kJ/mol | 8 kJ/mol molar heat of vaporization | 140 kJ/mol | 0.452 kJ/mol | 137 kJ/mol specific heat at STP | 205 J/(kg K) | 14300 J/(kg K) | 300 J/(kg K) adiabatic index | | 7/5 | (properties at standard conditions)

| barium | hydrogen | strontium density | 3.51 g/cm^3 | 8.99×10^-5 g/cm^3 | 2.63 g/cm^3 liquid density | 3.338 g/cm^3 | | 2.375 g/cm^3 molar volume | 39.12 cm^3/mol | 11200 cm^3/mol | 33.32 cm^3/mol Mohs hardness | 1.25 (between talc and gypsum) | | 1.5 (between talc and gypsum) bulk modulus | 9.6 GPa | | shear modulus | 4.9 GPa | | 6.1 GPa Young's modulus | 13 GPa | | Poisson ratio | | | 0.28 refractive index | (unknown) | 1.000132 | sound speed | 1620 m/s | 1270 m/s | thermal expansion | 2.06×10^-5 K^(-1) | | 2.25×10^-5 K^(-1) thermal conductivity | 18 W/(m K) | 0.1805 W/(m K) | 35 W/(m K) (properties at standard conditions)

| barium | hydrogen | strontium electrical type | conductor | | conductor resistivity | 3.5×10^-7 Ω m (ohm meters) | | 1.3×10^-7 Ω m (ohm meters) electrical conductivity | 2.9×10^6 S/m (siemens per meter) | | 7.7×10^6 S/m (siemens per meter) magnetic type | paramagnetic | diamagnetic | paramagnetic volume magnetic susceptibility | 3.966×10^-5 | -2.23×10^-9 | 3.47×10^-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) | 1.32×10^-9 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) | 1.16×10^-10 m^3/mol (cubic meters per mole) work function | 2.52 eV (Polycrystalline) | | 2.59 eV (Polycrystalline) threshold frequency | 6.093×10^14 Hz (hertz) | | 6.263×10^14 Hz (hertz) color | (silver) | (colorless) | (silver) refractive index | (unknown) | 1.000132 |

| barium | hydrogen | strontium valence | 2 | 1 | 2 electronegativity | 0.89 | 2.2 | 0.95 electron affinity | 13.95 kJ/mol (kilojoules per mole) | 72.8 kJ/mol (kilojoules per mole) | 5.03 kJ/mol (kilojoules per mole) first ionization energy | 502.9 kJ/mol (kilojoules per mole) | 1312 kJ/mol (kilojoules per mole) | 549.5 kJ/mol (kilojoules per mole) ionization energies | 502.9 kJ/mol | 965.2 kJ/mol | 3600 kJ/mol | 1312 kJ/mol | 549.5 kJ/mol | 1064.2 kJ/mol | 4138 kJ/mol | 5500 kJ/mol | 6910 kJ/mol | 8760 kJ/mol | 10230 kJ/mol | 11800 kJ/mol | 15600 kJ/mol | 17100 kJ/mol

Reactivity

| barium | hydrogen | strontium term symbol | ^1S_0 | ^2S_(1/2) | ^1S_0 atomic radius | 215 pm | 25 pm | 200 pm covalent radius | 215 pm | 31 pm | 195 pm van der Waals radius | (unknown) | 120 pm | (electronic ground state properties)

| barium | hydrogen | strontium universe abundance | 1×10^-6 mass% | 75 mass% | 4×10^-6 mass% solar abundance | 1×10^-6 mass% | 75 mass% | 5×10^-6 mass% meteorite abundance | 2.7×10^-4 mass% | 2.4 mass% | 8.7×10^-4 mass% crust abundance | 0.034 mass% | 0.15 mass% | 0.036 mass% ocean abundance | 3×10^-6 mass% | 11 mass% | 8.1×10^-4 mass% human abundance | 3×10^-5 mass% | 10 mass% | 4.6×10^-4 mass% universe molar abundance | 9×10^-9 mol% | 93 mol% | 6×10^-8 mol% solar molar abundance | 9.9×10^-9 mol% | 93 mol% | 7×10^-8 mol% meteorite molar abundance | 4.1×10^-5 mol% | 17 mol% | 2×10^-4 mol% ocean molar abundance | 1.4×10^-7 mol% | 66 mol% | 5.7×10^-5 mol% crust molar abundance | 0.0051 mol% | 3.1 mol% | 0.0085 mol% human molar abundance | 1.4×10^-6 mol% | 62 mol% | 3.3×10^-5 mol%