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CHEMISTRY

JAMB 2023 - Question 15

Chemistry 2023 JAMB Past Questions - Question 15: The ions A- and B+ are isoeletronic, each containing a total of 10 electrons. How many protons are in the nuclei_ of the neutral atoms of A and B respectively?

The ions A- and B+ are isoeletronic, each containing a total of 10 electrons. How many protons are in the nuclei_ of the neutral atoms of A and B respectively?

A: 9 and 9

B: 10 and 10

C: 9,and 11

D: I I and 9,

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Correct Answer

Explanation

A- means one excess electron, hence 9 protons while B +/- means one deficit electron hence 11 protons A and B = 9 and 11