Expanded Octet [ENDORSED]

[Rebecca Altshuler 1D]

Which atoms are allowed to have an expanded octet? Where do these extra electrons go?

[804991762_4A]

Any element from the 3rd row and beyond can have an expanded octet. These electrons become bonds or are symmetrically placed around the elements

[Ethan Yi 1K]

The extra electrons go into the d orbital of the atom. Thats why only elements in rows 3 or higher can have expanded octets, since they have a d orbital.

[Laura Gong 3H]

Elements in the third row and below. Some common ones are P, S, and Cl.

[Vicky Lu 1L]

Elements are allowed an expanded octet if they are n=3 and after. They are able to do so as there is a d orbital where they can be electrons in. Since n=3, l can be 0, 1, or 2 and therefore corresponds with s, p, and d orbitals.

[Aleeque Marselian 1A]

Elements on and after period 3 can have an expanded octet because they have a d orbital, where they can accommodate more electrons in. Common ones include, Sulfur, Phosphorous, and Chlorine.