Question

This element:

-has electrons in d sublevel
-is the heaviest named element in its group
-is a shiny metal used for jewelry

does anyone know which element it is?

Answer 1

If it was in group 11 where both silver and gold is found, with copper as well, then the answer would be gold. It does have a d-orbital shell in its electron configuration and it is the heaviest in its group. It is common knowledge that it is used as a shiny metal for jewelry, which we can see on accessories nowadays.