Input interpretation
hydrogen (chemical element) | technetium (chemical element) | vanadium (chemical element)
Periodic table location
Periodic table location
Images
Images
Basic elemental properties
| hydrogen | technetium | vanadium atomic symbol | H | Tc | V atomic number | 1 | 43 | 23 short electronic configuration | 1s^1 | [Kr]5s^24d^5 | [Ar]4s^23d^3 Aufbau diagram | 1s | 4d 5s | 3d 4s block | s | d | d group | 1 | 7 | 5 period | 1 | 5 | 4 atomic mass | 1.008 u | 98 u | 50.9415 u half-life | (stable) | 0.21 Myr | (stable)
Thermodynamic properties
| hydrogen | technetium | vanadium phase at STP | gas | solid | solid melting point | -259.14 °C | 2157 °C | 1910 °C boiling point | -252.87 °C | 4265 °C | 3407 °C critical temperature | 32.97 K | | critical pressure | 1.293 MPa | | molar heat of fusion | 0.558 kJ/mol | 23 kJ/mol | 22.8 kJ/mol molar heat of vaporization | 0.452 kJ/mol | 550 kJ/mol | 453 kJ/mol specific heat at STP | 14300 J/(kg K) | 63 J/(kg K) | 489 J/(kg K) adiabatic index | 7/5 | | (properties at standard conditions)
Material properties
| hydrogen | technetium | vanadium density | 8.99×10^-5 g/cm^3 | 11.5 g/cm^3 | 6.11 g/cm^3 liquid density | | | 5.5 g/cm^3 molar volume | 11200 cm^3/mol | 8.5 cm^3/mol | 8.337 cm^3/mol Mohs hardness | | | 7 (≈ quartz) Vickers hardness | | | 628 MPa Brinell hardness | | | 628 MPa bulk modulus | | | 160 GPa shear modulus | | | 47 GPa Young's modulus | | | 128 GPa Poisson ratio | | | 0.37 tensile yield strength | | 1.29 GPa | ultimate tensile strength | | 1.51 GPa | refractive index | 1.000132 | | sound speed | 1270 m/s | | 4560 m/s thermal expansion | | | 8.4×10^-6 K^(-1) thermal conductivity | 0.1805 W/(m K) | 51 W/(m K) | 31 W/(m K) (properties at standard conditions)
Electromagnetic properties
| hydrogen | technetium | vanadium electrical type | | conductor | conductor resistivity | | 2×10^-7 Ω m (ohm meters) | 2×10^-7 Ω m (ohm meters) electrical conductivity | | 5×10^6 S/m (siemens per meter) | 5×10^6 S/m (siemens per meter) magnetic type | diamagnetic | paramagnetic | paramagnetic volume magnetic susceptibility | -2.23×10^-9 | 3.933×10^-4 | 3.837×10^-4 mass magnetic susceptibility | -2.48×10^-8 m^3/kg (cubic meters per kilogram) | 3.42×10^-8 m^3/kg (cubic meters per kilogram) | 6.28×10^-8 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -4.999×10^-11 m^3/mol (cubic meters per mole) | 3.352×10^-9 m^3/mol (cubic meters per mole) | 3.199×10^-9 m^3/mol (cubic meters per mole) work function | | | 4.3 eV (Polycrystalline) threshold frequency | | | 1.04×10^15 Hz (hertz) superconducting point | | 7.8 K (kelvins) | 5.4 K (kelvins) color | (colorless) | (silver) | (silver) refractive index | 1.000132 | |
Reactivity
| hydrogen | technetium | vanadium valence | 1 | 6 | 5 electronegativity | 2.2 | 1.9 | 1.63 electron affinity | 72.8 kJ/mol (kilojoules per mole) | 53 kJ/mol (kilojoules per mole) | 50.6 kJ/mol (kilojoules per mole) first ionization energy | 1312 kJ/mol (kilojoules per mole) | 702 kJ/mol (kilojoules per mole) | 650.9 kJ/mol (kilojoules per mole) ionization energies | 1312 kJ/mol | 702 kJ/mol | 1470 kJ/mol | 2850 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
Atomic properties
| hydrogen | technetium | vanadium term symbol | ^2S_(1/2) | ^6S_(5/2) | ^4F_(3/2) atomic radius | 25 pm | 135 pm | 135 pm covalent radius | 31 pm | 147 pm | 153 pm van der Waals radius | 120 pm | | (electronic ground state properties)
Abundances
| hydrogen | technetium | vanadium universe abundance | 75 mass% | | 1×10^-4 mass% solar abundance | 75 mass% | 0 mass% | 4×10^-5 mass% meteorite abundance | 2.4 mass% | 0 mass% | 0.0061 mass% crust abundance | 0.15 mass% | 0 mass% | 0.019 mass% ocean abundance | 11 mass% | 0 mass% | 1.5×10^-7 mass% human abundance | 10 mass% | 0 mass% | 3×10^-6 mass% universe molar abundance | 93 mol% | | 2×10^-6 mol% solar molar abundance | 93 mol% | 0 mol% | 9×10^-7 mol% meteorite molar abundance | 17 mol% | 0 mol% | 0.0023 mol% ocean molar abundance | 66 mol% | 0 mol% | 1.8×10^-8 mol% crust molar abundance | 3.1 mol% | 0 mol% | 0.0075 mol% human molar abundance | 62 mol% | 0 mol% | 4×10^-7 mol%