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 atomic mass 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.
PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more.
Our guides use color and the interactivity of the web to make it easier to learn and teach literature.
Learn how to get preapproved and buy a home with Third Federal. Explore low‑rate mortgages, Smart Rate Adjustable options, Early Rate Lock, and programs for first‑time homebuyers.
Compare low‑rate home loans, mortgage preapprovals, refinancing, and home equity products with Third Federal. Trusted lenders providing safe, competitive mortgage solutions since 1938.