ACE inhibitors are used to treat a number of different conditions: 1  High blood pressure (hypertension) - ACE inhibitors usually work well to lower blood pressure. 2  Heart failure-ACE inhibitors reduce the strain on the heart by decreasing the amount of fluid pumped around the body.
Definition. Number is a grammatical category of nouns, pronouns, and verb agreement that expresses count distinctions (such as one or more than one). The count distinctions typically, but not always, correspond to the actual count of the referents of the marked noun or pronoun.
Atomic number. The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of an atom. It is identical to the charge number of the nucleus. The atomic number uniquely identifies a chemical element. In an uncharged atom, the atomic number is also equal to the number of electrons. The sum of the atomic number Z and the number of neutrons, N, gives the mass number A of an atom.