🤓 Based on our data, we think this question is relevant for Professor Pollet's class at GT.
In CO32- all the elements have a full octet, all have 8 electrons around each other.
In CS2, C has 2 double bonds which gives it a full octet, S also has 8 electrons around it.
Consider the following four molecules: CO2-3, PF5, CS2, BBr3.
Which of these satisfy the octet rule and which do not?