Валентность. Шпаргалка

Valence is the ability of atoms of chemical elements to enter into chemical compounds with atoms of other elements. In other words, it is the ability of an atom to form a certain number of chemical bonds with other atoms. A quantitative measure of valency is the number of bonds that a given atom forms with other atoms or atomic groups.

Cheat sheet on the valency of chemical elements:
- How can valence in compounds be determined?
- Constant and variable valency
- The valency table of chemical elements
- Determination of valency
- Preparation of chemical formulas by valency