Answer
Mg, Ti, Au, Bi, Ge, Eu and Am are metals. Si, B, At, Rn and Br are non-metals
Work Step by Step
As we know that metals are those elements which have some specific characteristics e.g they are shiny, easily give electrons, malleable, ductile and good conductors of electricity and heat. So, Mg, Ti, Au, Bi, Ge, Eu and Am are metals. Si, B, At, Rn and Br are non-metals.
