Input interpretation
sodium (chemical element)
Periodic table location
Periodic table location
Image
Image
Basic elemental properties
![atomic symbol | Na atomic number | 11 short electronic configuration | [Ne]3s^1 Aufbau diagram | 3s block | s group | 1 period | 3 atomic mass | 22.98976928 u (unified atomic mass units)](../image_source/7b572a554fd6aaf43bd45af91744903b.png)
atomic symbol | Na atomic number | 11 short electronic configuration | [Ne]3s^1 Aufbau diagram | 3s block | s group | 1 period | 3 atomic mass | 22.98976928 u (unified atomic mass units)
Thermodynamic properties
phase at STP | solid melting point | 97.72 °C (rank: 84th) boiling point | 883 °C (rank: 72nd) critical temperature | 2573 K (rank: 2nd) critical pressure | 35 MPa (rank: 3rd) molar heat of fusion | 2.6 kJ/mol (rank: 77th) molar heat of vaporization | 97.7 kJ/mol (rank: 69th) specific heat at STP | 1230 J/(kg K) (rank: 5th) (properties at standard conditions)
Material properties
density | 0.968 g/cm^3 (rank: 83rd) liquid density | 0.927 g/cm^3 molar volume | 23.7 cm^3/mol Mohs hardness | 0.5 (between talc and gypsum) Brinell hardness | 0.69 MPa (rank: 57th) bulk modulus | 6.3 GPa (rank: 64th) shear modulus | 3.3 GPa Young's modulus | 10 GPa (rank: 57th) ultimate tensile strength | 10 MPa (rank: 36th) sound speed | 3200 m/s (rank: 31st) thermal expansion | 7.1×10^-5 K^(-1) (rank: 3rd) thermal conductivity | 140 W/(m K) (rank: 12th) (properties at standard conditions)
Electromagnetic properties
electrical type | conductor resistivity | 4.7×10^-8 Ω m (ohm meters) electrical conductivity | 2.1×10^7 S/m (siemens per meter) magnetic type | paramagnetic volume magnetic susceptibility | 8.5×10^-6 mass magnetic susceptibility | 8.8×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | 2×10^-10 m^3/mol (cubic meters per mole) work function | 2.36 eV (Polycrystalline) threshold frequency | 5.706×10^14 Hz (hertz) color | (silver)
Reactivity
valence | 1 electronegativity | 0.93 electron affinity | 52.8 kJ/mol (kilojoules per mole) first ionization energy | 495.8 kJ/mol (kilojoules per mole) ionization energies | 495.8 kJ/mol | 4562 kJ/mol | 6910.3 kJ/mol | 9543 kJ/mol | 13354 kJ/mol | 16613 kJ/mol | 20117 kJ/mol | 25496 kJ/mol | 28932 kJ/mol | 141362 kJ/mol
Reactivity
Atomic properties
term symbol | ^2S_(1/2) atomic radius | 180 pm covalent radius | 166 pm van der Waals radius | 227 pm (electronic ground state properties)
(neutral sodium atomic spectrum)
Abundances
universe abundance | 0.002 mass% (rank: 15th) solar abundance | 0.004 mass% (rank: 15th) meteorite abundance | 0.55 mass% (rank: 11th) crust abundance | 2.3 mass% (rank: 7th) ocean abundance | 1.1 mass% (rank: 4th) human abundance | 0.14 mass% (rank: 9th) universe molar abundance | 1×10^-4 mol% (rank: 14th) solar molar abundance | 2×10^-4 mol% (rank: 15th) meteorite molar abundance | 0.48 mol% (rank: 10th) ocean molar abundance | 0.3 mol% (rank: 4th) crust molar abundance | 2.1 mol% (rank: 8th) human molar abundance | 0.038 mol% (rank: 8th)