Question:কোন দুটি আয়নের ইলেকট্রন সংখ্যা সমান? 

A `C1^-, Mg^(2+)` 
B `K^+, F^-` 
C `Naq^+, F^-` 
D `A1^(3+), Ca^(2+)` 

+ Answer
C 

+ Report

Md. Sohel Arman

Editor, VCampus

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