| Element (atom) Name | Chlorine |
| Symbol | Cl |
| Physical state at room temperature | Gas |
| Element Classification | Non-metal |
| Group Name | Halogen |
| Group number (Periodic table) | 17 |
| Period Number (Periodic table) | 3 |
| Atomic number | 17 |
| Atomic Weight | 35.45 (Ref: lanl-17, Pubchem-Chlorine) 35.453 Ref: Ciaaw-chlorine, science.co.il) 35.4527 (Ref: jlab-ele017) [35.446, 35.457] (Ref: Ciaaw-chlorine, nist-element 17 ) |
| Atomic Radius | |
| Density | 0.003214 g/cm3 (Ref: jlab-ele017) |
| Melting point | -101.5°C (Ref: jlab-ele017) |
| Boiling point | -34.04°C (Ref: jlab-ele017) |
| Electron configuration | 1s2 2s2 2p6 3s2 3p5 (Ref: jlab-ele017) |
| Oxidation States | +7, +5, +1, -1 (Ref: jlab-ele017) |
| Ionization Energy | 12.968 eV (Ref: jlab-ele017) 12.967633 eV (Ref: nist-element 17) |
| Number of Stable Isotopes | 2 (Ref: jlab-ele017) |
REFERENCES
- Lanl-17: https://periodic.lanl.gov/17.shtml
- Pubchem-Chlorine: https://pubchem.ncbi.nlm.nih.gov/element/Chlorine
- science.co.il: https://www.science.co.il/elements/
- jlab-ele017: https://education.jlab.org/itselemental/ele017.html
- Ciaaw-chlorine: https://www.ciaaw.org/chlorine.htm
- nist-element 17: https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=17
Was this post helpful?
Let us know if you liked the post. That’s the only way we can improve.
29 thoughts on “Element: Chlorine (Cl)”