# Problem: Part A: Calculate Zeff for a valence electron in an oxygen atom.Part B: Calculate Zeff for the 4s electron in a copper atom, Cu.Part C: Calculate Zeff for a 3d electron in a copper atom, Cu.

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Part A:

We’re being asked to calculate the effective nuclear charge (Zeff) of the valence electron in oxygen (O) atom. Recall that the effective nuclear charge is the forces exerted by the nucleus onto an electron and is given by: where Z = nuclear charge or atomic number and S = shielding constant. For this problem, we need to do the following steps:

Step 1: Determine the atomic number.

Step 2: Determine the electron configuration and group them by n-values.

Step 3: Calculate for the shielding constant.

Step 4: Calculate for Zeff.

97% (215 ratings) ###### Problem Details

Part A: Calculate Zeff for a valence electron in an oxygen atom.

Part B: Calculate Zeff for the 4s electron in a copper atom, Cu.

Part C: Calculate Zeff for a 3d electron in a copper atom, Cu.

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

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Based on our data, we think this problem is relevant for Professor Pentecost's class at GVSU.