What is the common feature of the elements in period 2?
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What is the common feature of the elements in period 2?
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For all elements in period 2, as the atomic number increases, the atomic radius of the elements decreases, the electronegativity increases, and the ionization energy increases. Period 2 only has two metals (lithium and beryllium) of eight elements, less than for any subsequent period both by number and by proportion.
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For all elements in period 2, as the atomic number increases, the atomic radius of the elements decreases, the electronegativity increases, and the ionization energy increases. Period 2 only has two metals (lithium and beryllium) of eight elements, less than for any subsequent period both by number and by proportion.