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OpenStudy (anonymous):
The elements in group 2 all have _____ valence electrons. 2 4 6 8
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OpenStudy (anonymous):
They have two valence electrons.
OpenStudy (anonymous):
They are also called alkaline earth metals. . To fill their outer shell, they therefore become ions with two positive charges, such as magnesium Mg -> 2e- + Mg2+
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