Why do metals lose electrons to form Ions? When does a metal stop losing ions?
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Metals tend to lose electrons to attain Noble Gas electron configuration. Groups 1 and 2 (the active metals) lose 1 and 2 valence electrons, respectively, because of their low Ionization energies. ... The sodium atom gives up an electron to form the Na+ ion and the chorine molecule gains electrons to form 2 Cl- ions.
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