arsenic vs phosphorus vs ruthenium

arsenic (chemical element) | phosphorus (chemical element) | ruthenium (chemical element)

Periodic table location

Images

| arsenic | phosphorus | ruthenium atomic symbol | As | P | Ru atomic number | 33 | 15 | 44 short electronic configuration | [Ar]4s^23d^104p^3 | [Ne]3s^23p^3 | [Kr]5s^14d^7 Aufbau diagram | 4p 3d 4s | 3p 3s | 4d 5s block | p | p | d group | 15 | 15 | 8 period | 4 | 3 | 5 atomic mass | 74.921595 u | 30.973761998 u | 101.07 u half-life | (stable) | (stable) | (stable)

| arsenic | phosphorus | ruthenium phase at STP | solid | solid | solid melting point | 817 °C | 44.2 °C | 2334 °C boiling point | 614 °C | 280.5 °C | 4150 °C molar heat of fusion | 27.7 kJ/mol | 0.64 kJ/mol | 25.7 kJ/mol molar heat of vaporization | 32.4 kJ/mol | 12.4 kJ/mol | 580 kJ/mol specific heat at STP | 328 J/(kg K) | 769.7 J/(kg K) | 238 J/(kg K) (properties at standard conditions)

| arsenic | phosphorus | ruthenium density | 5.727 g/cm^3 | 1.823 g/cm^3 | 12.37 g/cm^3 liquid density | 5.22 g/cm^3 | | 10.65 g/cm^3 molar volume | 13.08 cm^3/mol | 16.99 cm^3/mol | 8.171 cm^3/mol Mohs hardness | 3.5 (between calcite and fluorite) | | 6.5 (between microcline and quartz) Vickers hardness | 1510 MPa | | 2300 MPa Brinell hardness | 1440 MPa | | 2160 MPa bulk modulus | 22 GPa | 11 GPa | 220 GPa shear modulus | | | 173 GPa Young's modulus | 8 GPa | | 447 GPa Poisson ratio | | | 0.3 refractive index | 1.001552 | 1.001212 | sound speed | | | 5970 m/s thermal expansion | | | 6.4×10^-6 K^(-1) thermal conductivity | 50 W/(m K) | 0.236 W/(m K) | 120 W/(m K) (properties at standard conditions)

| arsenic | phosphorus | ruthenium electrical type | conductor | conductor | conductor resistivity | 3×10^-7 Ω m (ohm meters) | 1×10^-7 Ω m (ohm meters) | 7.1×10^-8 Ω m (ohm meters) electrical conductivity | 3.3×10^6 S/m (siemens per meter) | 1×10^7 S/m (siemens per meter) | 1.4×10^7 S/m (siemens per meter) magnetic type | diamagnetic | diamagnetic | paramagnetic volume magnetic susceptibility | -2.23×10^-5 | -2.06×10^-5 | 6.7×10^-5 mass magnetic susceptibility | -3.9×10^-9 m^3/kg (cubic meters per kilogram) | -1.13×10^-8 m^3/kg (cubic meters per kilogram) | 5.42×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -2.92×10^-10 m^3/mol (cubic meters per mole) | -3.5×10^-10 m^3/mol (cubic meters per mole) | 5.48×10^-10 m^3/mol (cubic meters per mole) work function | 3.75 eV (Polycrystalline) | | 4.71 eV (Polycrystalline) threshold frequency | 9.067×10^14 Hz (hertz) | | 1.139×10^15 Hz (hertz) superconducting point | | | 0.49 K (kelvins) color | (silver) | (colorless) | (silver) refractive index | 1.001552 | 1.001212 |

| arsenic | phosphorus | ruthenium valence | 5 | 5 | 6 electronegativity | 2.18 | 2.19 | 2.2 electron affinity | 78 kJ/mol (kilojoules per mole) | 72 kJ/mol (kilojoules per mole) | 101.3 kJ/mol (kilojoules per mole) first ionization energy | 947 kJ/mol (kilojoules per mole) | 1011.8 kJ/mol (kilojoules per mole) | 710.2 kJ/mol (kilojoules per mole) ionization energies | 947 kJ/mol | 1798 kJ/mol | 2735 kJ/mol | 4837 kJ/mol | 6043 kJ/mol | 12310 kJ/mol | 1011.8 kJ/mol | 1907 kJ/mol | 2914.1 kJ/mol | 4963.6 kJ/mol | 6273.9 kJ/mol | 21267 kJ/mol | 25431 kJ/mol | 29872 kJ/mol | 35905 kJ/mol | 40950 kJ/mol | 710.2 kJ/mol | 1620 kJ/mol | 2747 kJ/mol

Reactivity

| arsenic | phosphorus | ruthenium term symbol | ^4S_(3/2) | ^4S_(3/2) | ^5F_5 atomic radius | 115 pm | 100 pm | 130 pm covalent radius | 119 pm | 107 pm | 146 pm van der Waals radius | 185 pm | 180 pm | (electronic ground state properties)

| arsenic | phosphorus | ruthenium universe abundance | 8×10^-7 mass% | 7×10^-4 mass% | 4×10^-7 mass% solar abundance | | 7×10^-4 mass% | 5×10^-7 mass% meteorite abundance | 1.8×10^-4 mass% | 0.11 mass% | 8.1×10^-5 mass% crust abundance | 2.1×10^-4 mass% | 0.099 mass% | 9.9×10^-8 mass% ocean abundance | 2.3×10^-7 mass% | 7×10^-6 mass% | 7×10^-11 mass% human abundance | 5×10^-6 mass% | 1.1 mass% | universe molar abundance | 1×10^-8 mol% | 3×10^-5 mol% | 5×10^-9 mol% solar molar abundance | | 3×10^-5 mol% | 6×10^-9 mol% meteorite molar abundance | 4.6×10^-5 mol% | 0.07 mol% | 1.6×10^-5 mol% ocean molar abundance | 1.9×10^-8 mol% | 1.4×10^-6 mol% | 4.3×10^-12 mol% crust molar abundance | 5.8×10^-5 mol% | 0.07 mol% | 2×10^-8 mol% human molar abundance | 4×10^-7 mol% | 0.22 mol% |