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29) Predict the number of valence electrons for a Group 5a/15 element.rn(a) 2 (b) 3rn(c) 5 (d) 8rn(e) 15rn30) Which of the following groups has a predictable ionic charge of three positive?rn(a) Group 3a/13 (b) Group 3b/3rn(c) Group 5a/15 (d) Group 5b/5rn(e) Group 8a/18

Accepted Answer

(a) Group 5A/15 elements have 5 valence electrons.

(b) Group 3A/13 elements have a predictable ionic charge of three positive.

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