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Consider the electron configuration of the following elements: A = 2: 8:6; B=2: 8:2; C=2:8:1;...

Consider the electron configuration of the following elements: A = 2: 8:6; B=2: 8:2; C=2:8:1; D=2:8:8 State the element which forms a: (i) doubly charged cation; (ii) soluble trioxocarbonate (IV).?
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