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Why do Group 2 alkaline earth metals have a large positive electron affinity, while Group 1...

Why do Group 2 alkaline earth metals have a large positive electron affinity, while Group 1 alkali metals have a negative electron affinity? Use their electron configurations and box diagrams to support your answer.

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no 2 1 contain oncept nale: election and Cnsstohle Akali metals Name Atomic electonic conpuisquali A lithium 15² as (Na) sodiDATE Alkaline earth metals Name Alomic no ower electronic con le questions 2 4 Bewyllium Magnesium calcium 352 2 20 45 stron

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