Valency of elements in a group of periodic table

- Valency of all elements in a group of periodic table is
- The valency of elements in a group in modern periodic table
- How does the valency of elements change in going down a group of periodic table
- How does the valency of elements vary in going down a group of the periodic table
- Elements in group iv of the periodic table have a valency of 4
- Elements in group iii of the periodic table have a valency of 4