Algebra, branch of mathematics in which arithmetical operations and formal manipulations are applied to abstract symbols rather than specific numbers. This article presents algebra’s history, tracing the evolution of the equation, number systems, symbols, and the modern abstract structural view of algebra.
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 atomic mass changes with atomic number in the periodic table of elements via interactive plots.
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.
Explore how electron affinity changes with atomic number in the periodic table of elements via interactive plots.
Yahoo Finance: Modern Mill Expands ACRE Product Line with New Nickel Gap and V-Groove Siding Profiles
FERNWOOD, Miss., Feb. 27, 2025 /PRNewswire/ -- Modern Mill, a manufacturer of eco-friendly wood alternatives, continues its mission to deliver innovation to the building materials industry with the ...
Modern Mill Expands ACRE Product Line with New Nickel Gap and V-Groove Siding Profiles
WGNO: Wolf Home Products Introduces New, Modern Profiles to Wolf Trim Lineup