Write the valency of the following elements

- Write the valency of the following elements sodium
- Write the valency of the following elements.carbon
- Write the valency of the following elements hydrogen
- Write the valency of the following elements aluminium
- Write the valency of the following ions and elements co3
- Write the valency and atomicity of the following elements
- Write the valency of the following ions and elements
- Write the valency of the following ions and elements po4
- Write the symbol and valency of the following elements
- Write the valency and atomic symbol of the following elements
- Write the valency and atomic symbol of the following elements sodium z 11
- Write the valency and atomic symbol of the following elements sodium
- Write the atomic number and valency of the following elements
- Write the atomic number and valency of the following elements oxygen potassium
- Write the valency and atomic symbol of the following elements potassium