Why are the coinage metals cu, ag, au considered as transition metals although they have filled d-shells in the elemental state?
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A transition metal is one which forms one or more stable ions which have incompletely filled do orbitals. Cu-(Ar)3d^10 4s^1.
It forms two ions.
In +1 ion configuration is (Ar)3d^10
In +2 ion (Ar)3d^9.
Cu is a Transition metal because Cu^2+ ion has an incomplete d orbital.
In according to transition metal have partially filled ( n-1)d subs hello, s of Cu can be regarded as Transition metal.
Au is a transition metal and it does not usually react with other elements. Gold is a precious metal . Atomic no. is 79.This metal is ductile and malleable .
Configuration is Au-(Xe) 4f^14 5d^10 6s^1.
It includes in d block elements and it is known as transition elements.
Atomic no. of Ag is 47.
configuration is (kr)4d^9 5s^2
so it is in d block. so it is an transition elements.
It forms two ions.
In +1 ion configuration is (Ar)3d^10
In +2 ion (Ar)3d^9.
Cu is a Transition metal because Cu^2+ ion has an incomplete d orbital.
In according to transition metal have partially filled ( n-1)d subs hello, s of Cu can be regarded as Transition metal.
Au is a transition metal and it does not usually react with other elements. Gold is a precious metal . Atomic no. is 79.This metal is ductile and malleable .
Configuration is Au-(Xe) 4f^14 5d^10 6s^1.
It includes in d block elements and it is known as transition elements.
Atomic no. of Ag is 47.
configuration is (kr)4d^9 5s^2
so it is in d block. so it is an transition elements.
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