Combining capacity of sodium

Explanation:

The combining capacity of an atom is its ability to make bonds with other elements. It is also known as valency or valence. The number of valence electrons of an atom gives us an idea of the combining capacity. Some atoms like to donate or gain electrons, while others share them to combine with another atom.

beta decay is the answer

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.