<p>The complete lewis structure for SF4? I know S will have four bonds with F's and an unshared pair but how can it have 5 electron pairs? I know there are some exception rules but I never learned them. Which elements can hold more than 8 electrons in pairs?</p>
<p>correct me if im wrong, but basically any can... just less is where the exceptions come in (with B and Be)</p>
<p>count the number of valence electrons, make bonds between the F atoms and S, the octect for S is completed, as are the octects for F, all unbonded electrons just hover around the central atom...</p>
<p>I think most elements with d-subshells, f-subshells and higher s and p-subshells can make more than an octet.</p>
<p>Yes I do not believe that period 2 elements can break the octet rule</p>
<p>period 3 - 7 can go above the octet rule</p>
<p>Someone mentioned B and Be. They can have less than 8</p>