Problem: In which of the following sets do all species have the same number of electrons? a. Br-, Kr, Sr2+ b. C, N3-, O2-c. Mg2+, Sr2+, Ba2+ Extra Credit: What is the name for the term which describes this phenomena?

🤓 Based on our data, we think this question is relevant for Professor Ratcliff's class at WVU.

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We are asked in which of the following sets do all species have the same number of electrons.


Atomic number = electrons in neutral atom

  • each + charge removes 1 electron
  • each - charge adds 1 electron


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Problem Details

In which of the following sets do all species have the same number of electrons? 

a. Br-, Kr, Sr2+ 

b. C, N3-, O2-

c. Mg2+, Sr2+, Ba2+ 


Extra Credit: What is the name for the term which describes this phenomena?

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Our tutors have indicated that to solve this problem you will need to apply the Calculate Oxidation Number concept. If you need more Calculate Oxidation Number practice, you can also practice Calculate Oxidation Number practice problems.

What professor is this problem relevant for?

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