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Answered

. An atom lost an electron, which of the following group forms 1+ ion?

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Johndanielcaadago

Answer:

To illustrate, an atom of an alkali metal (group 1) loses one electron and forms a cation with a 1+ charge; an alkaline earth metal (group 2) loses two electrons and forms a cation with a 2+ charge, and so on.

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