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Question

What is the electron configuration for S2- ion?


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Solution

Sulfur:

  • Sulfur is an element having an atomic number 16 and an atomic symbol S.
  • It belongs to p-block elements and lies in Group-16.

Electronic configuration: The arrangement of electrons into the orbitals of an atom using some fundamental principle is called its electronic configuration.

Electronic configuration of Sulfur S:

  • The electronic configuration of Sulfur is 1s22s22p63s23p4.

Electronic configuration of Sulfide S2-:

  • Sulfide ion is formed by the two electrons.
  • The electronic configuration of Sulfur ion is 1s22s22p63s23p6.
  • The 8 valence electrons in the sulfide ion encounter a large amount of repulsion between electrons than the 6 valence electrons in the neutral sulfur atom.

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