Learning goal 2: Recall how many valence electrons are possessed by all of the elements in Group 2 of the periodic table, 01236
Question
Learning goal 2: Recall how many valence electrons are possessed by all of the elements in Group 2 of the periodic table, 01236
Solution
All elements in Group 2 of the periodic table, also known as alkaline earth metals, have 2 valence electrons. This is because they have two electrons in their outermost energy level, which is the definition of valence electrons. These two electrons are in the s-orbital, as the electron configuration of all Group 2 elements ends in s2.
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