👉 Fillingness is a concept in chemistry that describes the ability of an element to form ions or molecules when it is dissolved. It is related to the chemical properties of a substance and can be used to describe how a substance reacts with other substances, such as water, oxygen, or hydrogen. For example, in water, hydrogen and oxygen are bonded together to form H2O, which is a polar molecule that has a negative charge, whereas an element like nitrogen (N) does not have a
