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An atom of element X has one more shell of electrons than an atom of beryllium, but it has one less valence electron than beryllium. Which element is element X? sodium (Na) boron b. magnesium (Mg) lithium
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Aug 21, 2016
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An atom of element X has one more shell of electrons than an atom of beryllium, but it has one less valence electron than beryllium. Which element is element X?
sodium (Na)
boron
b. magnesium (Mg)
lithium (Li)
Physics
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Kshitij Banerjee
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The answer is C (magnesium (Mg)
Jwvh
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Aug 23, 2016
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Jwvh
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mg magnesium becuase one period down and one group to the side
Katone Vi
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Aug 27, 2016
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Katone Vi
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