(URGENT) the electron configuration of some elements are given. Based on the electron configuration which ELEMENTS can likely form ions with multiple charges?
a) zinc [Ar] 3dĀ¹ā°4sĀ²
b) iron [Ar] 3dā¶4sĀ²
c) sodium [Ne] 3sĀ¹
d) cobalt [Ar] 3dā· 4sĀ²
e) silver [Kr] 4dĀ¹ā° 5sĀ¹
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