What metal in the first transition series (3d series) exhibits + 1 oxidation state most frequently and why?
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Answer:
Copper (Cu)
Explanation:
Metals in 3d series --
Sc, V , Ti, Cr, Mn, Fe,Co, Ni,Cu,Zn
Cu has the outer electronic configuration 3d10 4s1, so if it looses 1 e- it will gain noble gas configuration 3d10
therefore, it shows +1 frequently
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