As far as I recognize $ceSO4^2-$ structure, sulfur renders two name: coordinates bonds v two oxygen atoms and also two dual bonds are created with oxygen after ~ sulfur expands it"s valance shell to 6. At this allude calculating formal fee of those two coordinate external inspection oxygen gives full formal charge of −2 and the formal fee on $ce S$ and also the dual bonded $ce O$ is zero. Thus the minus 2 fee on $ceSO4^2-$ deserve to be shown yet initially every the atoms were neutral. If making bonds electron were mutual only.

How walk excess 2 an unfavorable charge popular music up?

Please help, i am absolutely making part mistakes



The ion is not one S atom and 4 O atoms together. The ion ~ above the entirety is having actually two an unfavorable charges, thus it is somewhat prefer 1Sulphur + 4 Oxygen+2 electrons. It is no as though there was one sulphur and four neutral oxygen atoms, and they became negatively charged during bond formation. The bond have to have developed in some reaction, and in the reaction the fee would have been conserved.

You are watching: What is the charge of so4


Tho sulfur and also oxygen room not neutral atoms. The oxidation state of sulfur is 6+, and also of each oxygen is 2-. It slightly help to think around it as being external inspection ionically, also though the link nature is quite covalent. With each other it every ends up gift 2-.


There room partial dues on the S and the O in SO4<2->, the Sulfate ion. Sulfate ions are uncovered in sulfuric mountain = H2SO4, i beg your pardon ionizes into SO4<2-> + 2 H+

Oxygen is electro-negative. It has actually a partial an unfavorable charge. Think that water = H2O, i m sorry can break down into H+ and OH-.With oxygen pulling the electrons towards itself, the sulfur gets a partial confident charge.

Sulfur can have one of two people a partial confident charge or a partial an unfavorable charge. Hydrogen Sulfide = H2S, which can failure to H+ and also HS- .


An S atom has actually 6 valence electrons and a O atom has actually 6 valence elections

SO4 => (6x1) + (6x4) = 30 valence electrons

We would require 32 valence electrons for 4 complete outer shells(8x4) however only have actually 30. Hence the charge is 2- for the ion.

Thanks because that contributing response to ridge Exchange!

Please be sure to answer the question. Carry out details and also share your research!

But avoid

Asking because that help, clarification, or responding to various other answers.Making statements based upon opinion; back them up with referrals or personal experience.

Use MathJax to format equations. MathJax reference.

See more: How Much Garlic Powder Equals A Clove Of Garlic, How Much Garlic Powder Equals One Clove Of Garlic

To discover more, watch our tips on writing an excellent answers.

short article Your price Discard

By clicking “Post your Answer”, you agree come our terms of service, privacy policy and cookie policy

Not the price you're feather for? Browse various other questions tagged lewis-structure formal-charge or ask your very own question.

site design / logo © 2021 ridge Exchange Inc; user contributions license is granted under cc by-sa. Rev2021.11.22.40798

your privacy

By click “Accept all cookies”, you agree ridge Exchange have the right to store cookies on your device and disclose information in accordance with our Cookie Policy.