Translation of "Element" into English

each instance has the same specified number of protons in its atomic nucleus, and is itself also a class

A unit of information within a markup language that is defined by a tag, or a pair of tags surrounding some content, and includes any attributes defined within the initial tag.

The basic element that holds information in Outlook (similar to a file in other programs). Items include e-mail messages, appointments, contacts, tasks, journal entries, notes, posted items, and documents.