Exceptions

[Amal Aboumerhi 3E]

When drawing Lewis structures how do we adopt the rules for the octet exceptions? Can someone explain how the octet rule effects drawing the structures?

[Brandon Pham 1F]

Hi,
So generally we keep the number of electrons to 8 in Lewis structures but the exceptions being in the 3rd period/row (as they have the d-orbitals open) and in the 1st 4 elements as well as the Lewis acids and bases we learned. This affects the drawing because now we can have atoms without a full set of 8 electrons or over the limit of 8.

[806063252]

It changes the amount of bonds or free pairs that the element can hold and therefore changes the structure of the molecule to accommodate for this.