Bromine
It belongs to the 7th period, the halogens.
There is no such element.
Promethium belongs in the 7th family. The 7th family is The Lanthanide family.
the element belongs to 4th period, 9th group, it is a d block element. the element is cobalt
chlorine (Cl)
It belongs to the 7th period, the halogens.
There is no such element.
The 5th period.
5
Iodine, element number 53 is the halogen (Group 17) element in period 5.
Nobelium is a member of the actinoids family (period 7).
Group 7 Period 5
By 'family' , I query your meaning. However, osmium is a d-clock element ( transition element) . It is Group 8 , Period 6.
Promethium belongs in the 7th family. The 7th family is The Lanthanide family.
the element belongs to 4th period, 9th group, it is a d block element. the element is cobalt
Iodine
chlorine (Cl)