Coinage Metal

Group IB

Copper (Cu) = 29                    3d104s1

Silver (Ag) = 47                      4d105s1

Gold (Au) = 79                       5d106s1


General configuration is (n -1) d10ns1 and being to d-block of periodic table i.e. coinage metals are transition metals.


Coinage metals have characteristics color.

Copper       →             red

Silver            →               white

Gold               →             yellow


They show common oxidation state of +1. Besides +1, copper has +2 and gold has +3 O.S.


They lie at the lower part of electrochemical series. So they are least reactive metal and are found in native state

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