aluminum vs gold vs yttrium

aluminum (chemical element) | gold (chemical element) | yttrium (chemical element)

Periodic table location

Images

| aluminum | gold | yttrium atomic symbol | Al | Au | Y atomic number | 13 | 79 | 39 short electronic configuration | [Ne]3s^23p^1 | [Xe]6s^14f^145d^10 | [Kr]5s^24d^1 Aufbau diagram | 3p 3s | 5d 4f 6s | 4d 5s block | p | d | d group | 13 | 11 | 3 period | 3 | 6 | 5 atomic mass | 26.9815385 u | 196.966569 u | 88.90584 u half-life | (stable) | (stable) | (stable)

| aluminum | gold | yttrium phase at STP | solid | solid | solid melting point | 660.32 °C | 1064.18 °C | 1526 °C boiling point | 2519 °C | 2856 °C | 3345 °C molar heat of fusion | 10.7 kJ/mol | 12.5 kJ/mol | 11.4 kJ/mol molar heat of vaporization | 293 kJ/mol | 330 kJ/mol | 380 kJ/mol specific heat at STP | 904 J/(kg K) | 129.1 J/(kg K) | 298 J/(kg K) (properties at standard conditions)

| aluminum | gold | yttrium density | 2.7 g/cm^3 | 19.3 g/cm^3 | 4.472 g/cm^3 liquid density | 2.375 g/cm^3 | 17.31 g/cm^3 | 4.24 g/cm^3 molar volume | 10 cm^3/mol | 10.2 cm^3/mol | 19.88 cm^3/mol Mohs hardness | 2.75 (between calcite and gypsum) | 2.5 (between gypsum and calcite) | Vickers hardness | 167 MPa | 216 MPa | Brinell hardness | 245 MPa | 2450 MPa | 589 MPa bulk modulus | 76 GPa | 220 GPa | 41 GPa shear modulus | 26 GPa | 27 GPa | 26 GPa Young's modulus | 70 GPa | 78 GPa | 64 GPa Poisson ratio | 0.35 | 0.44 | 0.24 tensile yield strength | | | 67 MPa ultimate tensile strength | | 120 MPa | 150 MPa sound speed | 5100 m/s | 1740 m/s | 3300 m/s thermal expansion | 2.31×10^-5 K^(-1) | 1.42×10^-5 K^(-1) | 1.06×10^-5 K^(-1) thermal conductivity | 235 W/(m K) | 320 W/(m K) | 17 W/(m K) (properties at standard conditions)

| aluminum | gold | yttrium electrical type | conductor | conductor | conductor resistivity | 2.6×10^-8 Ω m (ohm meters) | 2.2×10^-8 Ω m (ohm meters) | 5.6×10^-7 Ω m (ohm meters) electrical conductivity | 3.8×10^7 S/m (siemens per meter) | 4.5×10^7 S/m (siemens per meter) | 1.8×10^6 S/m (siemens per meter) magnetic type | paramagnetic | diamagnetic | paramagnetic volume magnetic susceptibility | 2.11×10^-5 | -3.44×10^-5 | 2.978×10^-4 mass magnetic susceptibility | 7.8×10^-9 m^3/kg (cubic meters per kilogram) | -1.78×10^-9 m^3/kg (cubic meters per kilogram) | 6.66×10^-8 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | 2.1×10^-10 m^3/mol (cubic meters per mole) | -3.51×10^-10 m^3/mol (cubic meters per mole) | 5.921×10^-9 m^3/mol (cubic meters per mole) work function | (4.06 to 4.26) eV | (5.31 to 5.47) eV | 3.1 eV (Polycrystalline) threshold frequency | (9.817×10^14 to 1.03×10^15) Hz (hertz) | (1.284×10^15 to 1.323×10^15) Hz (hertz) | 7.496×10^14 Hz (hertz) superconducting point | 1.175 K (kelvins) | | 1.3 K (kelvins) color | (silver) | (gold) | (silver)

| aluminum | gold | yttrium valence | 3 | 5 | 3 electronegativity | 1.61 | 2.54 | 1.22 electron affinity | 42.5 kJ/mol (kilojoules per mole) | 222.8 kJ/mol (kilojoules per mole) | 29.6 kJ/mol (kilojoules per mole) first ionization energy | 577.5 kJ/mol (kilojoules per mole) | 890.1 kJ/mol (kilojoules per mole) | 600 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 | 890.1 kJ/mol | 1980 kJ/mol | 600 kJ/mol | 1180 kJ/mol | 1980 kJ/mol | 5847 kJ/mol | 7430 kJ/mol | 8970 kJ/mol | 11190 kJ/mol | 12450 kJ/mol | 14110 kJ/mol | 18400 kJ/mol

Reactivity

| aluminum | gold | yttrium term symbol | ^2P_(1/2) | ^2S_(1/2) | ^2D_(3/2) atomic radius | 125 pm | 135 pm | 180 pm covalent radius | 121 pm | 136 pm | 190 pm van der Waals radius | | 166 pm | (electronic ground state properties)

| aluminum | gold | yttrium universe abundance | 0.005 mass% | 6×10^-8 mass% | 7×10^-7 mass% solar abundance | 0.006 mass% | 1×10^-7 mass% | 1×10^-6 mass% meteorite abundance | 0.91 mass% | 1.7×10^-5 mass% | 1.9×10^-4 mass% crust abundance | 8.1 mass% | 3.1×10^-7 mass% | 0.0029 mass% ocean abundance | 5×10^-7 mass% | 5×10^-9 mass% | 1.3×10^-9 mass% human abundance | 9×10^-5 mass% | 1×10^-5 mass% | universe molar abundance | 2×10^-4 mol% | 4×10^-10 mol% | 1×10^-8 mol% solar molar abundance | 3×10^-4 mol% | 9.9×10^-10 mol% | 9.9×10^-9 mol% meteorite molar abundance | 0.67 mol% | 2×10^-6 mol% | 4.3×10^-5 mol% ocean molar abundance | 1.1×10^-7 mol% | 1.6×10^-10 mol% | 9×10^-11 mol% crust molar abundance | 6.3 mol% | 3×10^-8 mol% | 6.7×10^-4 mol% human molar abundance | 2.1×10^-5 mol% | 3×10^-7 mol% |