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A) A main group element with the valence electron configuration 2s1 is in periodic group _______

Chemistry

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A) A main group element with the valence electron configuration 2s1 is in periodic group _______.

It forms a monatomic ion with a charge of ________.

B. A main group element with the valence electron configuration 5s25p5 is in periodic group ______.

It forms a monatomic ion with a charge of ________.