
Chemistry | Definition, Topics, Types, History, & Facts | Britannica
Feb 3, 2026 · Cooking, fermentation, glass making, and metallurgy are all chemical processes that date from the beginnings of civilization. Today, vinyl, Teflon, liquid crystals, semiconductors, and …
Interactive Periodic Table of the Elements | Symbols, Atomic Weights ...
The rate at which chemical knowledge continues to accumulate is remarkable. Over time more than 8,000,000 different chemical substances, both natural and artificial, have been characterized and …
Chemical synthesis | Organic & Inorganic Reactions | Britannica
Chemical compounds are made up of atoms of different elements, joined together by chemical bonds. A chemical synthesis usually involves the breaking of existing bonds and the formation of new ones.
Periodic table | Definition, Elements, Names, Symbols, Groups, Charges ...
4 days ago · Periodic table, in chemistry, is an organized array of all the chemical elements in order of increasing atomic number. When the elements are thus arranged, there is a recurring pattern in …
Chemical Banking Corporation | Merger, Acquisition, Rebranding ...
Jan 14, 2026 · The merged company became the Chemical Banking Corporation. In 1996 the firm, which was by then the second-largest bank in the United States, merged with another New York …
Sodium | Facts, Uses, & Properties | Britannica
3 days ago · sodium (Na), chemical element of the alkali metal group (Group 1 [Ia]) of the periodic table. Sodium is a very soft silvery-white metal. Sodium is the most common alkali metal and the sixth most …
Chemical Definition & Meaning | Britannica Dictionary
CHEMICAL meaning: 1 : of or relating to chemistry; 2 : working by means of chemicals
Cellular respiration | Definition, Equation, Cycle, Process, Reactants ...
Jan 9, 2026 · Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and …
Chemical Products Portal | Britannica
Chemical Products Although nature provides us with a staggering amount of natural resources, humankind has also made use of a great variety of man-made compounds and substances.
2025 Bondi Beach shooting | Victims, Suspects, & Hero | Britannica
Jan 13, 2026 · The Bondi Beach shooting took place on December 14, 2025, when two gunmen opened fire on a Hanukkah gathering at one of Sydney’s most popular beaches. Fifteen people were killed …