group 7 elements

group 7 elements

manganese | technetium | rhenium | bohrium

Periodic table location

Images

| atomic symbol | atomic number | short electronic configuration manganese | Mn | 25 | [Ar]4s^23d^5 technetium | Tc | 43 | [Kr]5s^24d^5 rhenium | Re | 75 | [Xe]6s^24f^145d^5 bohrium | Bh | 107 | [Rn]7s^25f^146d^5 | Aufbau diagram | block | group manganese | 3d 4s | d | 7 technetium | 4d 5s | d | 7 rhenium | 5d 4f 6s | d | 7 bohrium | 6d 5f 7s | d | 7 | period | atomic mass | half-life manganese | 4 | 54.938044 u | (stable) technetium | 5 | 98 u | 0.21 Myr rhenium | 6 | 186.207 u | (stable) bohrium | 7 | 270 u | 90 min

phase at STP | all | solid melting point | median | 2157 °C | highest | 3186 °C (rhenium) | lowest | 1246 °C (manganese) | distribution | boiling point | median | 4265 °C | highest | 5596 °C (rhenium) | lowest | 2061 °C (manganese) | distribution | molar heat of fusion | median | 23 kJ/mol | highest | 33 kJ/mol (rhenium) | lowest | 13.2 kJ/mol (manganese) | distribution | molar heat of vaporization | median | 550 kJ/mol | highest | 705 kJ/mol (rhenium) | lowest | 220 kJ/mol (manganese) | distribution | specific heat at STP | median | 137 J/(kg K) | highest | 479 J/(kg K) (manganese) | lowest | 63 J/(kg K) (technetium) | distribution | (properties at standard conditions)

density | median | 11.5 g/cm^3 | highest | 21.02 g/cm^3 (rhenium) | lowest | 7.47 g/cm^3 (manganese) | distribution | molar volume | median | 8.5 cm^3/mol | highest | 8.8586 cm^3/mol (rhenium) | lowest | 7.354 cm^3/mol (manganese) Vickers hardness | all | 2450 MPa Brinell hardness | all | 196 MPa | 1320 MPa Poisson ratio | all | 0.3 ultimate tensile strength | all | 496 MPa | 1.51 GPa thermal conductivity | median | 48 W/(m K) | highest | 51 W/(m K) (technetium) | lowest | 7.8 W/(m K) (manganese) | distribution | (properties at standard conditions)

resistivity | median | 2×10^-7 Ω m (ohm meters) | highest | 1.6×10^-6 Ω m (ohm meters) (manganese) | lowest | 1.8×10^-7 Ω m (ohm meters) (rhenium) electrical conductivity | median | 5×10^6 S/m (siemens per meter) | highest | 5.6×10^6 S/m (siemens per meter) (rhenium) | lowest | 620000 S/m (siemens per meter) (manganese) volume magnetic susceptibility | median | 3.933×10^-4 | highest | 9.0387×10^-4 (manganese) | lowest | 9.59×10^-5 (rhenium) | distribution | mass magnetic susceptibility | median | 3.42×10^-8 m^3/kg (cubic meters per kilogram) | highest | 1.21×10^-7 m^3/kg (cubic meters per kilogram) (manganese) | lowest | 4.56×10^-9 m^3/kg (cubic meters per kilogram) (rhenium) molar magnetic susceptibility | median | 3.352×10^-9 m^3/mol (cubic meters per mole) | highest | 6.6475×10^-9 m^3/mol (cubic meters per mole) (manganese) | lowest | 8.49×10^-10 m^3/mol (cubic meters per mole) (rhenium) | distribution | work function | all | 4.1 eV | 4.72 eV

valence | median | 6.5 | highest | 7 (rhenium and bohrium) | lowest | 4 (manganese) | distribution | electronegativity | median | 1.9 | highest | 1.9 (technetium and rhenium) | lowest | 1.55 (manganese) electron affinity | median | 14.5 kJ/mol (kilojoules per mole) | highest | 53 kJ/mol (kilojoules per mole) (technetium) | lowest | 0 kJ/mol (kilojoules per mole) (manganese) first ionization energy | median | 717.3 kJ/mol (kilojoules per mole) | highest | 760 kJ/mol (kilojoules per mole) (rhenium) | lowest | 702 kJ/mol (kilojoules per mole) (technetium)

term symbol | all | ^6S_(5/2) atomic radius | median | 135 pm | highest | 140 pm (manganese) | lowest | 135 pm (technetium and rhenium) covalent radius | median | 147 pm | highest | 151 pm (rhenium) | lowest | 139 pm (manganese) | distribution | (electronic ground state properties)

solar abundance | median | 5×10^-9 mass% | highest | 0.001 mass% (manganese) | lowest | 0 mass% (technetium and bohrium) meteorite abundance | median | 2.45×10^-6 mass% | highest | 0.27 mass% (manganese) | lowest | 0 mass% (technetium and bohrium) crust abundance | median | 1.3×10^-7 mass% | highest | 0.11 mass% (manganese) | lowest | 0 mass% (technetium and bohrium) ocean abundance | median | 5×10^-11 mass% | highest | 2×10^-7 mass% (manganese) | lowest | 0 mass% (technetium and bohrium) human abundance | median | 0 mass% | highest | 2×10^-5 mass% (manganese) | lowest | 0 mass% (technetium and bohrium) solar molar abundance | median | 2.5×10^-11 mol% | highest | 2×10^-5 mol% (manganese) | lowest | 0 mol% (technetium and bohrium) meteorite molar abundance | median | 2.5×10^-7 mol% | highest | 0.093 mol% (manganese) | lowest | 0 mol% (technetium and bohrium) ocean molar abundance | median | 1.65×10^-12 mol% | highest | 2.3×10^-8 mol% (manganese) | lowest | 0 mol% (technetium and bohrium) crust molar abundance | median | 1.5×10^-8 mol% | highest | 0.042 mol% (manganese) | lowest | 0 mol% (technetium and bohrium) human molar abundance | median | 0 mol% | highest | 2.3×10^-6 mol% (manganese) | lowest | 0 mol% (technetium and bohrium)