A 2- Ion Has 36 Electrons and 45 Neutrons

question 26

Multiple Choice

A 2- ion has 36 electrons and 45 neutrons.What is its correct symbol?

• A)(⁸³Sr^2-)
• B)(⁷¹Br^2-)
• C)(⁷⁹Se ^2-)
• D)(⁷⁸As ^2-)

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