Which meta, steel-gray in colour is one if the lightest of all metals, Both the metal and its salts are highly toxic, and must be handled copper , it is extensively used in spring and electrical contacts.

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Which meta, steel-gray in colour is one if the lightest of all metals, Both the metal and its salts are highly toxic, and must be handled copper , it is extensively used in spring and electrical contacts.

Gold

Nickel

Beryllium

Silver