The symbols of chemical elements consist of one

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• chemical bonding — ▪ chemistry Introduction       any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …   Universalium

• chemical compound — Introduction  any substance composed of identical molecules consisting of atoms (atom) of two or more chemical elements (chemical element).       All the matter in the universe is composed of the atoms of more than 100 different chemical elements …   Universalium

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• History of the molecule — In chemistry, the history of the molecule traces the origins of the concept or idea of the existence of strong chemical bonds between two or more atoms. The modern concept of molecules can be traced back towards pre scientific Greek philosophers… …   Wikipedia

• Atom — The atom is the smallest unit of an element that retains the chemical properties of that element. An atom has an electron cloud consisting of negatively charged electrons surrounding a dense nucleus. The nucleus contains positively charged… …   Wikipedia

• star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… …   Universalium

• Charles Janet — (15 June 1849 7 February 1932) was a French engineer, company director, inventor and biologist. Contents 1 Life and work 2 Chemical ideas 3 References 4 External links …   Wikipedia

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• Giordano Memorization System - GMS — The Giordano Memorization System is a memory development system which was created in 1990 by Vladimir Alekseyevich Kozarenko. Its practical basis applies principles of classic mnemonics with elements from the Giordano Bruno memorization system.… …   Wikipedia