aluminum vs barium vs erbium

aluminum (chemical element) | barium (chemical element) | erbium (chemical element)

Periodic table location

Images

| aluminum | barium | erbium atomic symbol | Al | Ba | Er atomic number | 13 | 56 | 68 short electronic configuration | [Ne]3s^23p^1 | [Xe]6s^2 | [Xe]6s^24f^12 Aufbau diagram | 3p 3s | 6s | 4f 6s block | p | s | f group | 13 | 2 | period | 3 | 6 | 6 atomic mass | 26.9815385 u | 137.327 u | 167.259 u half-life | (stable) | (stable) | (stable)

| aluminum | barium | erbium phase at STP | solid | solid | solid melting point | 660.32 °C | 727 °C | 1497 °C boiling point | 2519 °C | 1870 °C | 2868 °C molar heat of fusion | 10.7 kJ/mol | 8 kJ/mol | 19.9 kJ/mol molar heat of vaporization | 293 kJ/mol | 140 kJ/mol | 285 kJ/mol specific heat at STP | 904 J/(kg K) | 205 J/(kg K) | 168 J/(kg K) Néel point | | | 82 K (properties at standard conditions)

| aluminum | barium | erbium density | 2.7 g/cm^3 | 3.51 g/cm^3 | 9.066 g/cm^3 liquid density | 2.375 g/cm^3 | 3.338 g/cm^3 | 8.86 g/cm^3 molar volume | 10 cm^3/mol | 39.12 cm^3/mol | 18.45 cm^3/mol Mohs hardness | 2.75 (between calcite and gypsum) | 1.25 (between talc and gypsum) | 2 (between gypsum and talc) Vickers hardness | 167 MPa | (unknown) | 589 MPa Brinell hardness | 245 MPa | | 814 MPa bulk modulus | 76 GPa | 9.6 GPa | 44 GPa shear modulus | 26 GPa | 4.9 GPa | 28 GPa Young's modulus | 70 GPa | 13 GPa | 70 GPa Poisson ratio | 0.35 | | 0.24 tensile yield strength | | | 60 MPa ultimate tensile strength | | | 136 MPa sound speed | 5100 m/s | 1620 m/s | 2830 m/s thermal expansion | 2.31×10^-5 K^(-1) | 2.06×10^-5 K^(-1) | 1.22×10^-5 K^(-1) thermal conductivity | 235 W/(m K) | 18 W/(m K) | 15 W/(m K) (properties at standard conditions)

| aluminum | barium | erbium electrical type | conductor | conductor | conductor resistivity | 2.6×10^-8 Ω m (ohm meters) | 3.5×10^-7 Ω m (ohm meters) | 8.6×10^-7 Ω m (ohm meters) electrical conductivity | 3.8×10^7 S/m (siemens per meter) | 2.9×10^6 S/m (siemens per meter) | 1.2×10^6 S/m (siemens per meter) magnetic type | paramagnetic | paramagnetic | paramagnetic volume magnetic susceptibility | 2.11×10^-5 | 3.966×10^-5 | 0.0341788 mass magnetic susceptibility | 7.8×10^-9 m^3/kg (cubic meters per kilogram) | 1.13×10^-8 m^3/kg (cubic meters per kilogram) | 3.77×10^-6 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | 2.1×10^-10 m^3/mol (cubic meters per mole) | 1.552×10^-9 m^3/mol (cubic meters per mole) | 6.30566×10^-7 m^3/mol (cubic meters per mole) Curie point | | | 32 K (kelvins) Néel point | | | 82 K (kelvins) work function | (4.06 to 4.26) eV | 2.52 eV (Polycrystalline) | threshold frequency | (9.817×10^14 to 1.03×10^15) Hz (hertz) | 6.093×10^14 Hz (hertz) | superconducting point | 1.175 K (kelvins) | (unknown) | color | (silver) | (silver) | (silver)

| aluminum | barium | erbium valence | 3 | 2 | 3 electronegativity | 1.61 | 0.89 | 1.24 electron affinity | 42.5 kJ/mol (kilojoules per mole) | 13.95 kJ/mol (kilojoules per mole) | 50 kJ/mol (kilojoules per mole) first ionization energy | 577.5 kJ/mol (kilojoules per mole) | 502.9 kJ/mol (kilojoules per mole) | 589.3 kJ/mol (kilojoules per mole) ionization energies | 577.5 kJ/mol | 1816.7 kJ/mol | 2744.8 kJ/mol | 11577 kJ/mol | 14842 kJ/mol | 18379 kJ/mol | 23326 kJ/mol | 27465 kJ/mol | 31853 kJ/mol | 38473 kJ/mol | 502.9 kJ/mol | 965.2 kJ/mol | 3600 kJ/mol | 589.3 kJ/mol | 1150 kJ/mol | 2194 kJ/mol | 4120 kJ/mol

Reactivity

| aluminum | barium | erbium term symbol | ^2P_(1/2) | ^1S_0 | ^3H_6 atomic radius | 125 pm | 215 pm | 175 pm covalent radius | 121 pm | 215 pm | 189 pm (electronic ground state properties)

| aluminum | barium | erbium universe abundance | 0.005 mass% | 1×10^-6 mass% | 2×10^-7 mass% solar abundance | 0.006 mass% | 1×10^-6 mass% | 1×10^-7 mass% meteorite abundance | 0.91 mass% | 2.7×10^-4 mass% | 1.8×10^-5 mass% crust abundance | 8.1 mass% | 0.034 mass% | 3×10^-4 mass% ocean abundance | 5×10^-7 mass% | 3×10^-6 mass% | 9×10^-11 mass% human abundance | 9×10^-5 mass% | 3×10^-5 mass% | universe molar abundance | 2×10^-4 mol% | 9×10^-9 mol% | 1×10^-9 mol% solar molar abundance | 3×10^-4 mol% | 9.9×10^-9 mol% | 9.9×10^-10 mol% meteorite molar abundance | 0.67 mol% | 4.1×10^-5 mol% | 2×10^-6 mol% ocean molar abundance | 1.1×10^-7 mol% | 1.4×10^-7 mol% | 3.3×10^-12 mol% crust molar abundance | 6.3 mol% | 0.0051 mol% | 3.7×10^-5 mol% human molar abundance | 2.1×10^-5 mol% | 1.4×10^-6 mol% |