silver vs iron vs tantalum

silver (chemical element) | iron (chemical element) | tantalum (chemical element)

Periodic table location

Images

| silver | iron | tantalum atomic symbol | Ag | Fe | Ta atomic number | 47 | 26 | 73 short electronic configuration | [Kr]5s^14d^10 | [Ar]4s^23d^6 | [Xe]6s^24f^145d^3 Aufbau diagram | 4d 5s | 3d 4s | 5d 4f 6s block | d | d | d group | 11 | 8 | 5 period | 5 | 4 | 6 atomic mass | 107.8682 u | 55.845 u | 180.94788 u half-life | (stable) | (stable) | (stable)

| silver | iron | tantalum phase at STP | solid | solid | solid melting point | 961.78 °C | 1538 °C | 3017 °C boiling point | 2162 °C | 2861 °C | 5458 °C molar heat of fusion | 11.3 kJ/mol | 13.8 kJ/mol | 36 kJ/mol molar heat of vaporization | 255 kJ/mol | 347 kJ/mol | 735 kJ/mol specific heat at STP | 235 J/(kg K) | 449 J/(kg K) | 140 J/(kg K) (properties at standard conditions)

| silver | iron | tantalum density | 10.49 g/cm^3 | 7.874 g/cm^3 | 16.65 g/cm^3 liquid density | 9.32 g/cm^3 | 6.98 g/cm^3 | 15 g/cm^3 molar volume | 10.283 cm^3/mol | 7.092 cm^3/mol | 10.868 cm^3/mol Mohs hardness | 2.5 (between gypsum and calcite) | 4 (≈ fluorite) | 6.5 (between microcline and quartz) Vickers hardness | 251 MPa | 608 MPa | 873 MPa Brinell hardness | 24.5 MPa | 490 MPa | 800 MPa bulk modulus | 100 GPa | 170 GPa | 200 GPa shear modulus | 30 GPa | 82 GPa | 69 GPa Young's modulus | 83 GPa | 211 GPa | 186 GPa Poisson ratio | 0.37 | 0.29 | 0.34 tensile yield strength | | 50 MPa | ultimate tensile strength | 140 MPa | | sound speed | 2600 m/s | 4910 m/s | 3400 m/s thermal expansion | 1.89×10^-5 K^(-1) | 1.18×10^-5 K^(-1) | 6.3×10^-6 K^(-1) thermal conductivity | 430 W/(m K) | 80 W/(m K) | 57 W/(m K) (properties at standard conditions)

| silver | iron | tantalum electrical type | conductor | conductor | conductor resistivity | 1.6×10^-8 Ω m (ohm meters) | 9.7×10^-8 Ω m (ohm meters) | 1.3×10^-7 Ω m (ohm meters) electrical conductivity | 6.2×10^7 S/m (siemens per meter) | 1×10^7 S/m (siemens per meter) | 7.7×10^6 S/m (siemens per meter) magnetic type | diamagnetic | ferromagnetic | paramagnetic volume magnetic susceptibility | -2.38×10^-5 | | 1.782×10^-4 mass magnetic susceptibility | -2.27×10^-9 m^3/kg (cubic meters per kilogram) | | 1.07×10^-8 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -2.45×10^-10 m^3/mol (cubic meters per mole) | | 1.936×10^-9 m^3/mol (cubic meters per mole) Curie point | | 1043 K (kelvins) | work function | (4.52 to 4.74) eV | (4.67 to 4.81) eV | (4 to 4.8) eV threshold frequency | (1.093×10^15 to 1.146×10^15) Hz (hertz) | (1.129×10^15 to 1.163×10^15) Hz (hertz) | (9.672×10^14 to 1.161×10^15) Hz (hertz) superconducting point | | (unknown) | 4.47 K (kelvins) color | (silver) | (gray) | (gray)

| silver | iron | tantalum valence | 1 | 3 | 5 electronegativity | 1.93 | 1.83 | 1.5 electron affinity | 125.6 kJ/mol (kilojoules per mole) | 15.7 kJ/mol (kilojoules per mole) | 31 kJ/mol (kilojoules per mole) first ionization energy | 731 kJ/mol (kilojoules per mole) | 762.5 kJ/mol (kilojoules per mole) | 761 kJ/mol (kilojoules per mole) ionization energies | 731 kJ/mol | 2070 kJ/mol | 3361 kJ/mol | 762.5 kJ/mol | 1561.9 kJ/mol | 2957 kJ/mol | 5290 kJ/mol | 7240 kJ/mol | 9560 kJ/mol | 12060 kJ/mol | 14580 kJ/mol | 22540 kJ/mol | 25290 kJ/mol | 28000 kJ/mol | 31920 kJ/mol | 34830 kJ/mol | 37840 kJ/mol | 44100 kJ/mol | 47206 kJ/mol | 122200 kJ/mol | 131000 kJ/mol | 140500 kJ/mol | 152600 kJ/mol | 163000 kJ/mol | 761 kJ/mol | 1500 kJ/mol

Reactivity

| silver | iron | tantalum term symbol | ^2S_(1/2) | ^5D_4 | ^4F_(3/2) atomic radius | 160 pm | 140 pm | 145 pm covalent radius | 145 pm | 132 pm | 170 pm van der Waals radius | 172 pm | (unknown) | (electronic ground state properties)

| silver | iron | tantalum universe abundance | 6×10^-8 mass% | 0.11 mass% | 8×10^-9 mass% solar abundance | 1×10^-7 mass% | 0.1 mass% | meteorite abundance | 1.4×10^-5 mass% | 22 mass% | 2×10^-6 mass% crust abundance | 7.9×10^-6 mass% | 6.3 mass% | 1.7×10^-4 mass% ocean abundance | 1×10^-8 mass% | 3×10^-7 mass% | 2×10^-10 mass% human abundance | | 0.006 mass% | universe molar abundance | 7×10^-10 mol% | 0.002 mol% | 6×10^-11 mol% solar molar abundance | 9.9×10^-10 mol% | 0.003 mol% | meteorite molar abundance | 2×10^-6 mol% | 7.8 mol% | 2×10^-7 mol% ocean molar abundance | 5.7×10^-10 mol% | 3.3×10^-8 mol% | 6.8×10^-12 mol% crust molar abundance | 2×10^-6 mol% | 2.3 mol% | 1.9×10^-5 mol% human molar abundance | | 6.7×10^-4 mol% |