+Ca₃ is a hypothetical or rarely observed triatomic molecule of [Calcium](/wiki/Calcium), an alkaline earth metal. While stable forms of calcium usually exist as a metallic solid, the study of such [Molecular Cluster](/wiki/Molecular_Cluster) formations explores unique bonding possibilities beyond typical atomic configurations.
+## See also
+- [Chemical Bond](/wiki/Chemical_Bond)
+- [Element](/wiki/Element)
+- [Periodic Table](/wiki/Periodic_Table)
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