Literary devices and terms are the techniques and elements—from figures of speech to narrative devices to poetic meters—that writers use to create narrative literature, poetry, speeches, or any other form of writing.
Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or even test your elements knowledge by playing a periodic table game!
The PubChem Periodic Table and Element pages help users navigate the abundant chemical element data available within PubChem while providing a convenient entry point to explore additional information, such as bioactivities and health and safety data, available in PubChem Compound pages for specific elements and their isotopes.
Explore how ionization energy changes with atomic number in the periodic table of elements via interactive plots.
Explore how boiling point changes with atomic number in the periodic table of elements via interactive plots.
Docs Data Organization Elements PubChem Periodic Table and Element pages Posted on UPDATE (): See also the paper published in Chemistry Teacher International (doi: 10.1515/cti-2020-0006). The periodic table of chemical elements is one of the most recognized tools in science. As we mark the 150th anniversary of the periodic table, the scientific community has declared ...
Our guides use color and the interactivity of the web to make it easier to learn and teach literature.
Theme Definition What is theme? Here’s a quick and simple definition: A theme is a universal idea, lesson, or message explored throughout a work of literature. One key characteristic of literary themes is their universality, which is to say that themes are ideas that not only apply to the specific characters and events of a book or play, but also express broader truths about human experience ...