Menu
Other Resources

Compare Chlorine vs Sulfur

Comparing Chlorine (Cl) and Sulfur (S). Atomic numbers 17 and 16 with atomic masses 35.446 u and 32.059 u, classified as nonmetal and nonmetal. Below: a side-by-side comparison of their physical, atomic, electron-configuration and historical properties, including density, melting and boiling points, ionization energies, oxidation states and discovery history.

vs
Cl
Chlorine
#17
S
Sulfur
#16

Periodic properties of the elements

ChlorineSulfur
SymbolClS
Atomic number1716
Group1716
Period33
Blockpp
Element categoryNonmetalNonmetal

Physical properties

ChlorineSulfur
Phase at STPGasSolid
Density3.2 g/cm32.07 g/cm3
Atomic weight35.446 u32.059 u
Melting point171.6 K
-101.55 °C
-150.79 °F		388.36 K
115.21 °C
239.378 °F
Boiling point239.11 K
-34.04 °C
-29.272 °F		717.8 K
444.65 °C
832.37 °F

Atomic properties

ChlorineSulfur
Electronegativity (Pauling Scale)3.162.58
Electron affinity348.575 kJ/mol200.41 kJ/mol
Oxidation states−1, +1, +2, +3, +4, +5, +6, +7
(a strongly acidic oxide)		−2, −1, 0, +1, +2, +3, +4, +5, +6
(a strongly acidic oxide)
Ionization energies
  1. 1251.2 kJ/mol
  2. 2298 kJ/mol
  3. 3822 kJ/mol
  4. 5158.6 kJ/mol
  5. 6542 kJ/mol
  6. 9362 kJ/mol
  7. 11018 kJ/mol
  8. 33604 kJ/mol
  9. 38600 kJ/mol
  10. 43961 kJ/mol
  11. 51068 kJ/mol
  12. 57119 kJ/mol
  13. 63363 kJ/mol
  14. 72341 kJ/mol
  15. 78095 kJ/mol
  16. 352994 kJ/mol
  17. 380760 kJ/mol
  1. 999.6 kJ/mol
  2. 2252 kJ/mol
  3. 3357 kJ/mol
  4. 4556 kJ/mol
  5. 7004.3 kJ/mol
  6. 8495.8 kJ/mol
  7. 27107 kJ/mol
  8. 31719 kJ/mol
  9. 36621 kJ/mol
  10. 43177 kJ/mol
  11. 48710 kJ/mol
  12. 54460 kJ/mol
  13. 62930 kJ/mol
  14. 68216 kJ/mol
  15. 311048 kJ/mol
  16. 337138 kJ/mol

Electron configuration

ChlorineSulfur
Shorthand configuration[Ne] 3s2 3p5 [Ne] 3s2 3p4
Full configuration1s2 2s2 2p6 3s2 3p5 1s2 2s2 2p6 3s2 3p4
Electrons per shell2, 8, 72, 8, 6

History

ChlorineSulfur
DiscoveryCarl Wilhelm Scheele (1774)Middle East (2000 BC)
First isolationCarl Wilhelm Scheele (1774)
Named bySir Humphry Davy (1810)
Compare Chlorine with
Compare Sulfur with