September 2018 1 91 Report
¿Qué configuración electrónica es correcta?
I. 24Cr : [Ar] 4s2 3d4
II. 26Fe+2 : [Ar] 3d6
III. 29Cu : [Ar] 4s1 3d10
a) I, II b) II, III c) I, III d) Solo III e) I, II, III
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