Problem: Which electron in sulfur is most shielded from nuclear charge?

🤓 Based on our data, we think this question is relevant for Professor Sharpe Elles' class at KU.

FREE Expert Solution

Recall that shielding is the resistance of an electron from the attractive forces exerted by the nucleus


Electrons that are further away from the nucleus have greater shieldingThis means the orbital that experiences that greatest shielding is farthest from the nucleus.


We first need to determine the electron configuration of sulfur (S):


S belongs in the p-block in Period 3 so its electron configuration will end at the 3p subshell. Recall that the p–subshell can hold a maximum of 6 electrons. The atomic number of S is 16 so it has 16 electrons.

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Problem Details

Which electron in sulfur is most shielded from nuclear charge?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Effective Nuclear Charge concept. You can view video lessons to learn Effective Nuclear Charge. Or if you need more Effective Nuclear Charge practice, you can also practice Effective Nuclear Charge practice problems.

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Based on our data, we think this problem is relevant for Professor Sharpe Elles' class at KU.