* Sulfur's Electron Configuration: Sulfur (S) has 16 electrons, with the electron configuration: 2, 8, 6. This means it has 6 electrons in its outermost shell (valence shell).
* Stability: Atoms tend to be most stable when they have a full outer shell, like the noble gases. For sulfur, this means having 8 electrons in its valence shell.
* Gaining Electrons: To achieve stability, sulfur can gain 2 electrons. This fills its valence shell and gives it a stable electron configuration like argon (2, 8, 8).
* Formation of the Sulfide Ion: By gaining 2 electrons, sulfur becomes negatively charged, forming the sulfide ion (S2-).
In summary:
* Sulfur has 6 valence electrons.
* It gains 2 electrons to achieve a stable octet.
* This results in the formation of the sulfide ion (S2-).
