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12 August, 12:58

Which change occurs when a barium atom loses two electrons? (1) It becomes a negative ion and its radius decreases. (2) It becomes a negative ion and its radius increases. (3) It becomes a positive ion and its radius decreases. (4) It becomes a positive ion and its radius increases.

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  1. 12 August, 14:03
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    It becomes a positive ion and its radius decreases.
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