Hello, I am having some trouble with part B, and would really appreciate some as

Question

Hello,

I am having some trouble with part B, and would really appreciate some assistance. I thought that the answer would have been 96 (the atomic number of Curium), but it keeps marking it as incorrect.

Electronic structure of the elements In the following questions identify the elements of the periodic table by their atomic numbers. Part A Which atom has the 1s22s22p5 electron configuration? 9 You are correct Your receipt no. is 163-9152Previous Ties Part B Which atom has the 5f76d17s2 electron configuration? 95 Submit Answer Incorrect. Tries 3/10 Previous Tries Part C Which atom has the 4d55s1 electron configuration? 42 You are correct Your receipt no. is 163-1419 (f) previous Tries

Explanation / Answer

Curium atomic number = 96

Cm = [Rn] 5f7 6d1 7s2

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