element types of weak bases

weak bases | element types

aluminum | carbon | iron | hydrogen | nitrogen | oxygen

Periodic table location

Images

| atomic symbol | atomic number | short electronic configuration aluminum | Al | 13 | [Ne]3s^23p^1 carbon | C | 6 | [He]2s^22p^2 iron | Fe | 26 | [Ar]4s^23d^6 hydrogen | H | 1 | 1s^1 nitrogen | N | 7 | [He]2s^22p^3 oxygen | O | 8 | [He]2s^22p^4 | Aufbau diagram | block | group aluminum | 3p 3s | p | 13 carbon | 2p 2s | p | 14 iron | 3d 4s | d | 8 hydrogen | 1s | s | 1 nitrogen | 2p 2s | p | 15 oxygen | 2p 2s | p | 16 | period | atomic mass | half-life aluminum | 3 | 26.9815385 u | (stable) carbon | 2 | 12.011 u | (stable) iron | 4 | 55.845 u | (stable) hydrogen | 1 | 1.008 u | (stable) nitrogen | 2 | 14.007 u | (stable) oxygen | 2 | 15.999 u | (stable)

ammonia | hydrogen | nitrogen methylamine | carbon | hydrogen | nitrogen diazane | hydrogen | nitrogen hydroxylamine | hydrogen | nitrogen | oxygen ammonium hydroxide | hydrogen | nitrogen | oxygen dimethylamine | carbon | hydrogen | nitrogen ethylamine | carbon | hydrogen | nitrogen trimethylamine | carbon | hydrogen | nitrogen diethylamine | carbon | hydrogen | nitrogen aluminum hydroxide | aluminum | hydrogen | oxygen pyridine | carbon | hydrogen | nitrogen iron(II) hydroxide | iron | hydrogen | oxygen aniline | carbon | hydrogen | nitrogen

phase at STP | all | gas | solid melting point | median | 225.1 °C | highest | 3550 °C (carbon) | lowest | -259.14 °C (hydrogen) | distribution | boiling point | median | 1168 °C | highest | 4027 °C (carbon) | lowest | -252.87 °C (hydrogen) | distribution | critical temperature | median | 126.21 K | highest | 154.59 K (oxygen) | lowest | 32.97 K (hydrogen) | distribution | critical pressure | median | 3.39 MPa | highest | 5.043 MPa (oxygen) | lowest | 1.293 MPa (hydrogen) | distribution | molar heat of fusion | median | 5.63 kJ/mol | highest | 105 kJ/mol (carbon) | lowest | 0.222 kJ/mol (oxygen) molar heat of vaporization | median | 148 kJ/mol | highest | 715 kJ/mol (carbon) | lowest | 0.452 kJ/mol (hydrogen) | distribution | specific heat at STP | median | 912 J/(kg K) | highest | 14300 J/(kg K) (hydrogen) | lowest | 449 J/(kg K) (iron) adiabatic index | all | 7/5 (properties at standard conditions)

density | median | 1.131 g/cm^3 | highest | 7.874 g/cm^3 (iron) | lowest | 8.99×10^-5 g/cm^3 (hydrogen) | distribution | molar volume | median | 5610 cm^3/mol | highest | 11200 cm^3/mol (hydrogen) | lowest | 5.315 cm^3/mol (carbon) Mohs hardness | median | 2.75 | highest | 4 (≈ fluorite) (iron) | lowest | 0.5 (between talc and gypsum) (carbon) | distribution | Vickers hardness | all | 167 MPa | 608 MPa Brinell hardness | all | 245 MPa | 490 MPa bulk modulus | median | 76 GPa | highest | 170 GPa (iron) | lowest | 33 GPa (carbon) | distribution | Poisson ratio | all | 0.29 | 0.35 refractive index | median | 1.000284 | highest | 2.417 (carbon) | lowest | 1.000132 (hydrogen) sound speed | median | 3090 m/s | highest | 18350 m/s (carbon) | lowest | 317.5 m/s (oxygen) | distribution | thermal expansion | median | 1.18×10^-5 K^(-1) | highest | 2.31×10^-5 K^(-1) (aluminum) | lowest | 7.1×10^-6 K^(-1) (carbon) | distribution | thermal conductivity | median | 40 W/(m K) | highest | 235 W/(m K) (aluminum) | lowest | 0.02583 W/(m K) (nitrogen) | distribution | (properties at standard conditions)

resistivity | median | 9.7×10^-8 Ω m (ohm meters) | highest | 1×10^-5 Ω m (ohm meters) (carbon) | lowest | 2.6×10^-8 Ω m (ohm meters) (aluminum) electrical conductivity | median | 1×10^7 S/m (siemens per meter) | highest | 3.8×10^7 S/m (siemens per meter) (aluminum) | lowest | 100000 S/m (siemens per meter) (carbon) | distribution | volume magnetic susceptibility | median | -2.23×10^-9 | highest | 2.11×10^-5 (aluminum) | lowest | -1.4×10^-5 (carbon) | distribution | mass magnetic susceptibility | median | -5.4×10^-9 m^3/kg (cubic meters per kilogram) | highest | 1.335×10^-6 m^3/kg (cubic meters per kilogram) (oxygen) | lowest | -2.48×10^-8 m^3/kg (cubic meters per kilogram) (hydrogen) | distribution | molar magnetic susceptibility | median | -4.999×10^-11 m^3/mol (cubic meters per mole) | highest | 4.27184×10^-8 m^3/mol (cubic meters per mole) (oxygen) | lowest | -1.5×10^-10 m^3/mol (cubic meters per mole) (nitrogen) | distribution | work function | all | 5 eV | (4.06 to 4.26) eV | (4.67 to 4.81) eV

valence | median | 3 | highest | 4 (carbon) | lowest | 1 (hydrogen) | distribution | electronegativity | median | 2.38 | highest | 3.44 (oxygen) | lowest | 1.61 (aluminum) | distribution | electron affinity | median | 57.7 kJ/mol (kilojoules per mole) | highest | 153.9 kJ/mol (kilojoules per mole) (carbon) | lowest | 7 kJ/mol (kilojoules per mole) (nitrogen) | distribution | first ionization energy | median | 1199.3 kJ/mol (kilojoules per mole) | highest | 1402.3 kJ/mol (kilojoules per mole) (nitrogen) | lowest | 577.5 kJ/mol (kilojoules per mole) (aluminum) | distribution |

term symbol | all | ^2P_(1/2) | ^2S_(1/2) | ^3P_0 | ^3P_2 | ^4S_(3/2) | ^5D_4 atomic radius | median | 68 pm | highest | 140 pm (iron) | lowest | 25 pm (hydrogen) | distribution | covalent radius | median | 74 pm | highest | 132 pm (iron) | lowest | 31 pm (hydrogen) | distribution | van der Waals radius | median | 153 pm | highest | 170 pm (carbon) | lowest | 120 pm (hydrogen) | distribution | (electronic ground state properties)