In Which of the Following Sets Do All Species Have

question 139

Multiple Choice

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

• A)At^-,Rn,Ra²⁺
• B)C,N^3-,O^2-
• C)CO³⁺,Rh³⁺,Ir³⁺
• D)Br,Co²⁺,Co³⁺

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