How can the valency of an element be determined

- The valency of an element can be determined with respect to
- The valency of an element can be determined with respect to which atom
- The valency of an element can be determined with respect to hydrogen atom
- How is the valency of an element determined
- How does the valency of an element determined explain it with suitable example
- How to find the valency of an element
- How to know valency of elements
- Valency of chemical elements