Subject: Chemistry
Book: General Chemistry
Found in Group 2, the alkaline earth metals include beryllium, magnesium, and calcium. They have two valence electrons and typically form +2 cations. Less reactive than alkali metals, they still react with water (though often less vigorously) and oxygen to form oxides. These metals are crucial in biological systems (e.g., magnesium in chlorophyll, calcium in bones) and industrial applications (e.g., magnesium alloys).
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