Jane's partner Taylor gives her a ring for valentine's day, which they said is white gold. Jane's friend Sofia thinks it's actually silver. Design an experiment that Jane could conduct to find out for sure? Please help

The diagin dilutepage 6 of 12a6a5(a)fluorine, chlorine, bromine and iodine are placed in the same group of theperiodic table.state the common name used to describe elements in this group.(i)state the group in which the elements are placed and explain whythey are placed in that group.(ii)which of the above named elements is a solid at roomtemperature and pressure?