What is the maximum covalency of Sulphur?

Answer 1

Sulphur (S) is in group 6 and so can show a maximum valency of 6. An example would be in the compound sulphur hexafluoride, SF₆

Answer 2

Sulfur has atomic # = 16, therefore, its electron configuration is 1s²2s²2p⁶3s²3p⁴. Its valence shell is n = 3, which contains 6 electrons (2 electrons in the 3s orbital and 4 electrons in the 3p orbitals).