Natrium |
| Simbool | Na |
|---|---|
| Latynse naam | Natrium |
| Atoomgetal | 11 |
| Periode | 3 |
| Element kategorie | Alkalie metale |
| Relatieve atomiese massa | 22.98768 |
| Groep | I.A |
| Electronegativiteit | 0.9 |
| Oksidering nommers | 1 |
| Elektronkonfigurasie | 1s2 2s2 2p6 3s1 |
| Digtheid [g/cm3] | 0.9725 |
| Staat | Vaste stof |
| Smeltpunt [°C] | 98.81 |
| Kookpunt [°C] | 882.9 |
| Kritiese Punt [°C] | 2300 |
| Kritiese druk [MPa] | 35 |
| Atoomradius [pm] | 190 |
| Covalent radius [pm] | 154 |
| Termiese geleidingsvermoë [W m-1K-1] | 141 |
| Hitte kapasiteit [J K-1g-1] | 1.23 |
| Ontdekking | 1807 |
| Hardheid [Mohs-skaal] | 0.4 |
| Brinell-hardheid [MPa] | 0.69 |
| Young's modulus [GPa] | 10 |
| Elektriese geleiding [S m-1] | 2.01 · 107 |
| Shear modulus [GPa] | 3.3 |
| 1ste ionisasie-energie [eV] | 5.1391 |
| 2de ionisasie-energie [eV] | 47.286 |
| 3de ionisasie-energie [eV] | 71.641 |
| Stabiele isotope | 1 |
| Onstabiele isotope | 6 |