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Chemistry 9 Online
OpenStudy (anonymous):

The elements in group 2 all have _____ valence electrons. 2 4 6 8

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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