Atom Definition–noun | 1. | Physics. | a. | the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical attraction; the number of protons determines the identity of the element. | | b. | an atom with one of the electrons replaced by some other particle: muonic atom; kaonic atom. | | | 2. | Energy. this component as the source of nuclear energy. | | 3. | a hypothetical particle of matter so minute as to admit of no division. | | 4. | anything extremely small; a minute quantity. | |
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Related topics from Britannicaatom
smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical ...
Egoyan, Atom
Canadian film director Atom Egoyan, no stranger to the awards podium, cemented his reputation in 1997 when his latest movie, The Sweet Hereafter, won the Grand Jury Prize, the International Film ...
Atoms for Peace speech
speech delivered to the United Nations by U.S. Pres. Dwight D. Eisenhower on Dec. 8, 1953 (see primary source document: Atoms for Peace). In this address, Eisenhower spelled out the necessity of ...
atomic bomb
weapon with great explosive power that results from the sudden release of energy upon the splitting, or fission, of the nuclei of such heavy elements as plutonium or uranium.Wilde, Jimmy
Welsh professional boxer, world flyweight (112 pounds) champion from 1916 to 1923.spectroscopy
The concept of the atom is an ancient one; the Greek philosopher Democritus (c. 460-c. 370 BC) proposed a form of "atomism" that contained the essential features of the chemical atom later introduced ...
chemical bonding
The concept of atoms thus emerged from the meticulous measurement of mass and volume, which in the earliest days of chemistry were the only quantitative probes of matter available. The reality of ...
oxidation-reduction reaction
The oxidation-state concept clarifies the relationship between oxygen-atom, hydrogen-atom, and electron transfer. The oxygen- and hydrogen-transfer criteria apply only when oxygen and hydrogen occur ...
atomism
The idea of applying the atomistic conceptions not only to material but also to psychical phenomena is as old as atomism itself. Democritus had spoken of the atoms of the soul. According to the ...
chemical element
Atoms of elemental substances are themselves complex structures composed of more fundamental particles called protons, neutrons, and electrons. Experimental evidence indicates that, within an atom, a ...
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Related articles from FindarticlesEncyclopedia of Science, The - Atoms
October 25, 2005 -- Atoms are the smallest particles of matter that have distinct physical and chemical properties. Each different type of atom makes up an element which...Engineered Systems - Atomizing systems
October 1, 2008 -- [ILLUSTRATION OMITTED] The company's fog fan is equipped with a pressure-sensing fan which is designed to add increased velocity to the fog...Science News - Atomic core
August 30, 2008 -- [ILLUSTRATION OMITTED] Atoms trapped by light may someday help physicists understand the forces inside the atomic nucleus...San Diego Business Journal - General Atomics
January 7, 2008 -- Michael Reed has been named senior vice president of the Advanced Technologies Group at General Atomics. Reed has been with General Atomics since...Science News - Atom & cosmos
December 6, 2008 -- NASA's Phoenix Mars Lander has tasted its last morsel of the Red Planet's soil and viewed its last Martian landscape. With shorter days and an...GPS World - Atomic clocks
November 1, 2007 -- I just read Don Jewell's newsletter column: "Atomic Clocks--So What?" Thanks for introducing the subject without all the quantum...Science News - Atom & Cosmos
October 25, 2008 -- A malfunction in the Hubble Space Telescope delayed until next year a mission to repair and upgrade the orbiting observatory. Read about it in...Science News - Atom & cosmos
October 11, 2008 -- [ILLUSTRATION OMITTED] As the summer wanes on Mars' northern plain, the Phoenix Lander works on. Read "Racing against the Martian winterMechanical Engineering - ATOMIC FORCES INTERPRETED
October 1, 2008 -- Dynamic atomic force microscopes can gather information on the nanoscale. But interpreting the microscope's findings is another matter. Now, virtual...Esprit de Corps - Atomic veterans remembered
October 1, 2008 -- The Departments of National Defence and Veterans Affairs have finally announced a compensation program for Canadian veterans who participated in... |
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Related links from BlogsIntel's Atom Grows Up, Moves out of Netbooks - PC World
An increasing number of Atom-based laptops are hitting the market, but these devices aren't netbooks.ViewSonic launches Atom-based computing line - Engadget
All three Atom-based machines sport Windows XP Home, a 1.6GHz processor, 1GB RAM and 160GB storage. VieBook is a 10.2-inch netbook with all the usual connectivity options and an MSRP of $429. The VPC100 ViePC is an all-in-one device, ...Intel's Atom Grows Up, Moves Out of Netbooks - CIO.com - Business ...
Have you noticed Atom-based laptops seem to be getting nicer? The latest models sport bigger screens, more RAM, and slimmer and lighter designs than anything that's come before. They are also using versions of the Atom processor that ...TG Daily - Intel stepping up Menlow Atom promotion
Intel is stepping up moves to promote its low-power consumption Menlow platform (Atom) and to clear inventories in preparation for the launch of its successor, Moorestown, which is expected to be launched in October, according to ...Intel Atom N280 CPU shows up in some new Eee PC models
A news and information web site covering low cost ultraportable laptops, or netbooks.DVICE: Intel drops Atom bomb on OLPC
Intel drops Atom bomb on OLPC, by Curtis Walker. Presented by DVICE (DVICE.COM), part of the SCI FI Network, (SCIFI.COM)ViewSonic VieBook, VPC100 ViePC and LinkPC Atom PCs | iTech News ...
ViewSonic VieBook, VPC100 ViePC and LinkPC Atom PCs. In addition to digital photo frames introduced here and here, ViewSonic brings to the CES 2009 also the VieBook netbook, VPC100 ViePC all-in-one PC and LinkPC, an attachable PC. ...Asus Eee D200 Atom PC with touchscreen | iTech News Net - Gadget ...
Asus Eee D200 Atom PC with touchscreen. Asus shows at the CES 2009 the Eee D200 PC (or media server?) powered by Atom. The Eee D200 comes with a 3.5-inch LCD touchscreen. Asus’ Eee D200 sports an Intel N270 Atom 1.6GHz processor, ...Viliv X70 Atom spotted at CES | UMPCPortal - The Mobile Internet ...
Based on the existing X70, the X70 Atom (which is just a working name i'm told) is built around a 7 screen and it looks like they've incorporated a keyboard by.Via Displays Netbooks, PCs With Rival Chip to Intel Atom - PC World
Via is showing off netbooks and PC systems with the Nano microprocessor, its rival to Intel's Atom. |
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