Question

An ion of a mystery element has a charge of -1. Which group of the periodic table would you expect this element to belong to?

Answer 1

Answer:

hydrogen is the correct answer for ur question

Answer 2

The mystery element has to be fluorine

So ,the group will be group 17 which is also called as halogens.

As the charge on the ion is -1 , so the element should have a high tendency to gain electron.

The members of group 17 are highly electronegative and among them fluorine is the most stable when it has a charge of -1.