Transition elements are more metallic than representative elements ($s$ and $p-$ block elements) due to
availability of $d-$ orbitals for bonding
variable oxidation states are not shown by transition elements
all electrons are paired in $d-$ orbitals
$f-$ orbitals are available for bonding
German silver is an alloy of
Assertion : Cuprous ion $(Cu^+)$ has unpaired electrons while cupric ion $(Cu^{2+})$ does not.
Reason : Cuprous ion $(Cu^+)$ is colourless whereas cupric ion $(Cu^{2+})$ is blue in the aqueous solution.
Transition metals show paramagnetism
Properties common to the elements manganese, iron, cobalt, nickel and copper include the ready formation by them all of
$(I)$ coloured ions in aqueous solution
$(II)$ oxides of nitrogen are formed on reaction with concentrated $HNO_3$
$(III)$ chlorides of formula $MCl_2$ and $MCl_3$
Percentage of silver in German silver is