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Which obeys the octet rule PF5 Cs2 BBr3 CO3 2-?

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I know for sure BBr# & PF5 do not obey the octet rule, but i can't remember the rule of isotopes so I can't say for sure whether or not CO3 -2 obeys it or not.
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Does Bf3 obey the octet rule?

No it is not fully obeying the octet rule. Boron has only 6 electrons (3 own + 3 from each F atom), lacking two for the octet. Fluorine is 3x satisfied, each with 8 electr

Why BH3 obey the octet rule?

BH3 does not obey octet rule. it has a total of six electrons only. boron has three electrons in the valence shell and it accepts one electron from each hydrogen BH3 is a

Does O3 obey the octet rule?

Yes. One of the "canonical" forms is O=O+-O- Just found a picture that will help see wikipedia article for ozone

Does CO2 obey the octet rule?

Yes both of carbon and oxygen obey the octet rule in CO 2

Does C6H12O6 obey the octet rule?

Yes, it obeys the octet rule. (Of coarse not an octet for the H atoms: they are saturated with a duplet (=2)). To show you HOW this is done, you will need the structural f

Does SO4 2- obey the octet rule?

Yes, SO4 2- can be drawn without violating the octet rule. It is also a resonance structure. Here's an illustration below (ignore the dots, it was the only way it posted corre