What are metallic bonds?

A metallic bond is not actually a bond but it is an interaction between conduction electrons and metallic nuclie . And also there is no single metallic bond .

No, they are similar to ionic bonds. The electrons and the positive ions in the metal have a strong attractive force between them.

Both have positive metal ions involved.

pure solid gold utilizes metallic bonding

metallic bond said very similar to covalent bond because the bond both just attracted to its element.In covalent the attraction is between non metal and in metallic the attraction is between metal