potassium vs oxygen vs vanadium

potassium (chemical element) | oxygen (chemical element) | vanadium (chemical element)

Periodic table location

Images

| potassium | oxygen | vanadium atomic symbol | K | O | V atomic number | 19 | 8 | 23 short electronic configuration | [Ar]4s^1 | [He]2s^22p^4 | [Ar]4s^23d^3 Aufbau diagram | 4s | 2p 2s | 3d 4s block | s | p | d group | 1 | 16 | 5 period | 4 | 2 | 4 atomic mass | 39.0983 u | 15.999 u | 50.9415 u half-life | (stable) | (stable) | (stable)

| potassium | oxygen | vanadium phase at STP | solid | gas | solid melting point | 63.38 °C | -218.3 °C | 1910 °C boiling point | 759 °C | -182.9 °C | 3407 °C critical temperature | 2223 K | 154.59 K | critical pressure | 16 MPa | 5.043 MPa | molar heat of fusion | 2.33 kJ/mol | 0.222 kJ/mol | 22.8 kJ/mol molar heat of vaporization | 76.9 kJ/mol | 3.41 kJ/mol | 453 kJ/mol specific heat at STP | 757 J/(kg K) | 919 J/(kg K) | 489 J/(kg K) adiabatic index | | 7/5 | (properties at standard conditions)

| potassium | oxygen | vanadium density | 0.856 g/cm^3 | 0.001429 g/cm^3 | 6.11 g/cm^3 liquid density | 0.828 g/cm^3 | | 5.5 g/cm^3 molar volume | 45.7 cm^3/mol | 11200 cm^3/mol | 8.337 cm^3/mol Mohs hardness | 0.4 (between talc and gypsum) | | 7 (≈ quartz) Vickers hardness | | | 628 MPa Brinell hardness | 0.363 MPa | | 628 MPa bulk modulus | 3.1 GPa | | 160 GPa shear modulus | 1.3 GPa | | 47 GPa Young's modulus | | | 128 GPa Poisson ratio | | | 0.37 refractive index | | 1.000271 | sound speed | 2000 m/s | 317.5 m/s | 4560 m/s thermal expansion | | | 8.4×10^-6 K^(-1) thermal conductivity | 100 W/(m K) | 0.02658 W/(m K) | 31 W/(m K) (properties at standard conditions)

| potassium | oxygen | vanadium electrical type | conductor | | conductor resistivity | 7×10^-8 Ω m (ohm meters) | | 2×10^-7 Ω m (ohm meters) electrical conductivity | 1.4×10^7 S/m (siemens per meter) | | 5×10^6 S/m (siemens per meter) magnetic type | paramagnetic | paramagnetic | paramagnetic volume magnetic susceptibility | 5.74×10^-6 | 1.90772×10^-6 | 3.837×10^-4 mass magnetic susceptibility | 6.7×10^-9 m^3/kg (cubic meters per kilogram) | 1.335×10^-6 m^3/kg (cubic meters per kilogram) | 6.28×10^-8 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | 2.62×10^-10 m^3/mol (cubic meters per mole) | 4.27184×10^-8 m^3/mol (cubic meters per mole) | 3.199×10^-9 m^3/mol (cubic meters per mole) work function | 2.29 eV (Polycrystalline) | | 4.3 eV (Polycrystalline) threshold frequency | 5.537×10^14 Hz (hertz) | | 1.04×10^15 Hz (hertz) superconducting point | | | 5.4 K (kelvins) color | (silver) | (colorless) | (silver) refractive index | | 1.000271 |

| potassium | oxygen | vanadium valence | 1 | 2 | 5 electronegativity | 0.82 | 3.44 | 1.63 electron affinity | 48.4 kJ/mol (kilojoules per mole) | 141 kJ/mol (kilojoules per mole) | 50.6 kJ/mol (kilojoules per mole) first ionization energy | 418.8 kJ/mol (kilojoules per mole) | 1313.9 kJ/mol (kilojoules per mole) | 650.9 kJ/mol (kilojoules per mole) ionization energies | 418.8 kJ/mol | 3052 kJ/mol | 4420 kJ/mol | 5877 kJ/mol | 7975 kJ/mol | 9590 kJ/mol | 11343 kJ/mol | 14944 kJ/mol | 16963.7 kJ/mol | 48610 kJ/mol | 1313.9 kJ/mol | 3388.3 kJ/mol | 5300.5 kJ/mol | 7469.2 kJ/mol | 10989.5 kJ/mol | 13326.5 kJ/mol | 71330 kJ/mol | 84078 kJ/mol | 650.9 kJ/mol | 1414 kJ/mol | 2830 kJ/mol | 4507 kJ/mol | 6298.7 kJ/mol | 12363 kJ/mol | 14530 kJ/mol | 16730 kJ/mol | 19860 kJ/mol | 22240 kJ/mol | 24670 kJ/mol | 29730 kJ/mol | 32446 kJ/mol | 86450 kJ/mol | 94170 kJ/mol | 102300 kJ/mol | 112700 kJ/mol | 121600 kJ/mol | 130700 kJ/mol | 143400 kJ/mol | 151440 kJ/mol

Reactivity

| potassium | oxygen | vanadium term symbol | ^2S_(1/2) | ^3P_2 | ^4F_(3/2) atomic radius | 220 pm | 60 pm | 135 pm covalent radius | 203 pm | 66 pm | 153 pm van der Waals radius | 275 pm | 152 pm | (electronic ground state properties)

| potassium | oxygen | vanadium universe abundance | 3×10^-4 mass% | 1 mass% | 1×10^-4 mass% solar abundance | 4×10^-4 mass% | 0.9 mass% | 4×10^-5 mass% meteorite abundance | 0.07 mass% | 40 mass% | 0.0061 mass% crust abundance | 1.5 mass% | 46 mass% | 0.019 mass% ocean abundance | 0.042 mass% | 86 mass% | 1.5×10^-7 mass% human abundance | 0.2 mass% | 61 mass% | 3×10^-6 mass% universe molar abundance | 1×10^-5 mol% | 0.08 mol% | 2×10^-6 mol% solar molar abundance | 9.9×10^-6 mol% | 0.07 mol% | 9×10^-7 mol% meteorite molar abundance | 0.037 mol% | 48 mol% | 0.0023 mol% ocean molar abundance | 0.0066 mol% | 33 mol% | 1.8×10^-8 mol% crust molar abundance | 0.78 mol% | 60 mol% | 0.0075 mol% human molar abundance | 0.032 mol% | 24 mol% | 4×10^-7 mol%