Problem: A comparison of the electron configurations of nickel (Ni) and copper (Cu) indicates that 1. Cu has two more d electrons and the same number of s electrons as Ni. 2. Cu has one more d electron and the same number of s electrons as Ni. 3. Cu has two more d electrons and one less s electron than Ni.  4. Cu has one more d electron and one less s electron than Ni. 5. Cu has one more d electron and one more s electron than Ni.

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Problem Details

A comparison of the electron configurations of nickel (Ni) and copper (Cu) indicates that

1. Cu has two more d electrons and the same number of s electrons as Ni.

2. Cu has one more d electron and the same number of s electrons as Ni.

3. Cu has two more d electrons and one less s electron than Ni. 

4. Cu has one more d electron and one less s electron than Ni.

5. Cu has one more d electron and one more s electron than Ni.

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