18. Identify which of the following ions has the largest size.
(A) O²⁻
(B) F⁻
(C) Na⁺
(D) Mg²⁺
(E) Al³⁺
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統計: A(1), B(0), C(0), D(0), E(0) #3853533
統計: A(1), B(0), C(0), D(0), E(0) #3853533