Sulfate Ion structure

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Emma Randolph 1J
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Joined: Fri Sep 28, 2018 12:29 am

Sulfate Ion structure

Postby Emma Randolph 1J » Mon Oct 29, 2018 12:34 pm

I'm a bit confused as to why when we draw the Lewis Structure for the sulfate ion how it's okay for the sulfur to take in more than 8 electrons..Is there a limit of how many electrons it can take? How do we know how many electrons can fit into a atom?

rachana_korapati3C
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Joined: Fri Sep 28, 2018 12:25 am

Re: Sulfate Ion structure

Postby rachana_korapati3C » Mon Oct 29, 2018 1:43 pm

Sulfur is one of the exceptions to the octet rule. Sulfur is able to hold more than eight electrons due to its bonding. It's also a third period element which means the d sub level exists, and it has five d orbitals. Therefore, the additional d orbitals can accommodate for more electrons.

Laura Gong 3H
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Re: Sulfate Ion structure

Postby Laura Gong 3H » Mon Oct 29, 2018 1:57 pm

Notable hypervalent (expanded octets) atoms are usually elements below row 2, especially S, P, Cl, Br, I, and Xe. This is because the electrons can occupy the 3d orbital in bonding.

On the other hand, notable octet deficient atoms are usually in column 3A (B, Al, Ga, etc.).


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