hydrogen vs technetium vs vanadium vs barium

hydrogen (chemical element) | technetium (chemical element) | vanadium (chemical element) | barium (chemical element)

Periodic table location

Images

| atomic symbol | atomic number | short electronic configuration hydrogen | H | 1 | 1s^1 technetium | Tc | 43 | [Kr]5s^24d^5 vanadium | V | 23 | [Ar]4s^23d^3 barium | Ba | 56 | [Xe]6s^2 | Aufbau diagram | block | group hydrogen | 1s | s | 1 technetium | 4d 5s | d | 7 vanadium | 3d 4s | d | 5 barium | 6s | s | 2 | period | atomic mass | half-life hydrogen | 1 | 1.008 u | (stable) technetium | 5 | 98 u | 0.21 Myr vanadium | 4 | 50.9415 u | (stable) barium | 6 | 137.327 u | (stable)

phase at STP | all | gas | solid melting point | median | 1319 °C | highest | 2157 °C (technetium) | lowest | -259.14 °C (hydrogen) | distribution | boiling point | median | 2639 °C | highest | 4265 °C (technetium) | lowest | -252.87 °C (hydrogen) | distribution | molar heat of fusion | median | 15 kJ/mol | highest | 23 kJ/mol (technetium) | lowest | 0.558 kJ/mol (hydrogen) | distribution | molar heat of vaporization | median | 296 kJ/mol | highest | 550 kJ/mol (technetium) | lowest | 0.452 kJ/mol (hydrogen) specific heat at STP | median | 347 J/(kg K) | highest | 14300 J/(kg K) (hydrogen) | lowest | 63 J/(kg K) (technetium) (properties at standard conditions)

density | median | 4.81 g/cm^3 | highest | 11.5 g/cm^3 (technetium) | lowest | 8.99×10^-5 g/cm^3 (hydrogen) | distribution | molar volume | median | 23.8 cm^3/mol | highest | 11200 cm^3/mol (hydrogen) | lowest | 8.337 cm^3/mol (vanadium) Vickers hardness | all | 628 MPa Brinell hardness | all | 628 MPa Poisson ratio | all | 0.37 ultimate tensile strength | all | 1.51 GPa sound speed | median | 1620 m/s | highest | 4560 m/s (vanadium) | lowest | 1270 m/s (hydrogen) thermal conductivity | median | 25 W/(m K) | highest | 51 W/(m K) (technetium) | lowest | 0.1805 W/(m K) (hydrogen) | distribution | (properties at standard conditions)

resistivity | median | 2×10^-7 Ω m (ohm meters) | highest | 3.5×10^-7 Ω m (ohm meters) (barium) | lowest | 2×10^-7 Ω m (ohm meters) (technetium and vanadium) electrical conductivity | median | 5×10^6 S/m (siemens per meter) | highest | 5×10^6 S/m (siemens per meter) (technetium and vanadium) | lowest | 2.9×10^6 S/m (siemens per meter) (barium) volume magnetic susceptibility | median | 2.117×10^-4 | highest | 3.933×10^-4 (technetium) | lowest | -2.23×10^-9 (hydrogen) | distribution | mass magnetic susceptibility | median | 2.275×10^-8 m^3/kg (cubic meters per kilogram) | highest | 6.28×10^-8 m^3/kg (cubic meters per kilogram) (vanadium) | lowest | -2.48×10^-8 m^3/kg (cubic meters per kilogram) (hydrogen) | distribution | molar magnetic susceptibility | median | 2.375×10^-9 m^3/mol (cubic meters per mole) | highest | 3.352×10^-9 m^3/mol (cubic meters per mole) (technetium) | lowest | -4.999×10^-11 m^3/mol (cubic meters per mole) (hydrogen) | distribution | work function | all | 2.52 eV | 4.3 eV

valence | median | 3.5 | highest | 6 (technetium) | lowest | 1 (hydrogen) | distribution | electronegativity | median | 1.8 | highest | 2.2 (hydrogen) | lowest | 0.89 (barium) | distribution | electron affinity | median | 52 kJ/mol (kilojoules per mole) | highest | 72.8 kJ/mol (kilojoules per mole) (hydrogen) | lowest | 13.95 kJ/mol (kilojoules per mole) (barium) | distribution | first ionization energy | median | 676 kJ/mol (kilojoules per mole) | highest | 1312 kJ/mol (kilojoules per mole) (hydrogen) | lowest | 502.9 kJ/mol (kilojoules per mole) (barium)

term symbol | all | ^1S_0 | ^2S_(1/2) | ^4F_(3/2) | ^6S_(5/2) atomic radius | median | 135 pm | highest | 215 pm (barium) | lowest | 25 pm (hydrogen) | distribution | covalent radius | median | 150 pm | highest | 215 pm (barium) | lowest | 31 pm (hydrogen) | distribution | (electronic ground state properties)

universe abundance | median | 1×10^-4 mass% | highest | 75 mass% (hydrogen) | lowest | 1×10^-6 mass% (barium) solar abundance | median | 2×10^-5 mass% | highest | 75 mass% (hydrogen) | lowest | 0 mass% (technetium) meteorite abundance | median | 0.0032 mass% | highest | 2.4 mass% (hydrogen) | lowest | 0 mass% (technetium) crust abundance | median | 0.027 mass% | highest | 0.15 mass% (hydrogen) | lowest | 0 mass% (technetium) ocean abundance | median | 1.6×10^-6 mass% | highest | 11 mass% (hydrogen) | lowest | 0 mass% (technetium) human abundance | median | 1.6×10^-5 mass% | highest | 10 mass% (hydrogen) | lowest | 0 mass% (technetium) universe molar abundance | median | 2×10^-6 mol% | highest | 93 mol% (hydrogen) | lowest | 9×10^-9 mol% (barium) solar molar abundance | median | 4.5×10^-7 mol% | highest | 93 mol% (hydrogen) | lowest | 0 mol% (technetium) meteorite molar abundance | median | 0.0012 mol% | highest | 17 mol% (hydrogen) | lowest | 0 mol% (technetium) ocean molar abundance | median | 7.9×10^-8 mol% | highest | 66 mol% (hydrogen) | lowest | 0 mol% (technetium) crust molar abundance | median | 0.0063 mol% | highest | 3.1 mol% (hydrogen) | lowest | 0 mol% (technetium) human molar abundance | median | 9×10^-7 mol% | highest | 62 mol% (hydrogen) | lowest | 0 mol% (technetium)