Chemistry came of age when Antoine Lavoisier ( 1743 – 1794 ) developed the theory of Conservation of mass in 1783 ; and the development of the Atomic Theory by John Dalton around 1800.

A proposal by the U. S. to the United Nations Atomic Energy Commission ( UNAEC ) to a ) extend between all nations the exchange of basic scientific information for peaceful ends ; b ) implement control of atomic energy to the extent necessary to ensure its use only for peaceful purposes ; c ) eliminate from national armaments atomic weapons and all other major weapons adaptable to mass destruction ; and d ) establish effective safeguards by way of inspection and other means to protect complying States against the hazards of violations and evasions.

Atomic hydrogen comprises about 75 % of the elemental mass of the universe.

simple: Atomic mass unit

* Atomic mass unit ( dalton ) – the atomic mass unit

The Bulletin of the Atomic Scientists is a nontechnical online magazine that covers global security and public policy issues, especially related to the dangers posed by nuclear and other weapons of mass destruction.

Atomic units, like SI units, have a unit of mass, a unit of length, and so on.

** Resolution 1: Established the United Nations Atomic Energy Commission ( UNAEC ) " to deal with the problems raised by the discovery of atomic energy " and tasked to " make specific proposals ... for the elimination from national armaments of atomic weapons and of all other major weapons adaptable to mass destruction ", among other issues regarding nuclear technology.

Whether Iraq actually had weapons of mass destruction or not was being investigated by Hans Blix, head of the Commission, and Mohamed ElBaradei, head of the International Atomic Energy Agency.

The development of the bomb and its use against Japan in August 1945 initiated the Atomic Age, a time of anxiety over weapons of mass destruction that has lasted through the Cold War and down to the anti-proliferation efforts of today.

Atomic nuclei are ten thousand times smaller than the atoms they reside in, but they contain nearly all the atom ’ s mass ( more than 99. 9 percent ).

Atomic spectroscopy is the determination of elemental composition by its electromagnetic or mass spectrum.

Atomic mass spectrometry is similar to other types of mass spectrometry in that it consists of an ion source, a mass analyzer, and a detector.

* Prospects in Analytical Atomic Spectrometry – tendencies in five main branches of atomic spectrometry ( absorption, emission, mass, fluorescence and ionization spectrometry )

He defected to Jordan and assisted United Nations Special Commission ( UNSCOM ) and International Atomic Energy Agency ( IAEA ) inspection teams assigned to look for weapons of mass destruction in Iraq.

# REDIRECT Atomic mass

# REDIRECT Atomic mass unit

Atomic nuclei consisting of such a magic number of nucleons have a higher average binding energy per nucleon than one would expect based upon predictions such as the semi-empirical mass formula and are hence more stable against nuclear decay.

Metals are commonly measured by atomic spectroscopy and mass spectrometry: Atomic Absorption Spectrophotometry ( AAS ) and Inductively Coupled Plasma Atomic Emission ( ICP-AES ) or Inductively Coupled Plasma Mass Spectrometric ( ICP-MS ) techniques.

TRIUMF ’ s Ion Trap for Atomic and Nuclear Science ( TITAN ) measures the mass of short-lived isotopes with high precision.

Atomic orbitals are the basic building blocks of the atomic orbital model ( alternatively known as the electron cloud or wave mechanics model ), a modern framework for visualizing the microscopic behavior of electrons in matter.

Atomic orbitals can be the hydrogen-like " orbitals " which are exact solutions to the Schrödinger equation for a hydrogen-like " atom " ( i. e., an atom with one electron ).

Alfonso Cuarón was born in México City and is the son of Alfredo Cuarón, a nuclear physicist who worked for the United Nations ' International Atomic Energy Agency for many years.

Atomic semantics are defined for a variable with a single writer but multiple readers.

Atomic absorption spectroscopy ( AAS ) is a spectroanalytical procedure for the quantitative determination of chemical elements employing the absorption of optical radiation ( light ) by free atoms in the gaseous state.

* Atomic units, a system of units convenient for atomic physics and other fields

There would have to be a balance between the size of the warhead ( Orange Herald or Green Bamboo as developed by the Atomic Weapons Research Establishment ( AWRE ) and the need for it to be carried by any of the three V-bomber types in use, and that it should be able to reach Mach 3.

Membership in International Organizations: The major organizations in which Colombia is a member include: the Agency for the Prohibition of Nuclear Weapons in Latin America and the Caribbean, Andean Pact, Caribbean Development Bank, Economic Commission for Latin America and the Caribbean, Food and Agriculture Organization of the United Nations, Group of 3, Group of 11, Group of 24, Group of 77, Inter-American Development Bank, International Atomic Energy Agency, International Bank for Reconstruction and Development, International Chamber of Commerce, International Civil Aviation Organization, International Criminal Police Organization, International Development Association, International Finance Corporation, International Fund for Agricultural Development, International Labour Organization, International Maritime Organization, International Maritime Satellite Organization, International Monetary Fund ( IMF ), International Olympic Committee, International Organization for Migration, International Organization for Standardization, International Telecommunication Union, International Telecommunications Satellite Organization, International Trade Union Confederation, Latin American Economic System, Latin American Integration Association, Latin Union, Non-Aligned Movement, Organization of American States ( OAS ), Permanent Court of Arbitration, Rio Group, United Nations ( UN ), UN Conference on Trade and Development, UN Educational, Scientific and Cultural Organization, UN Industrial Development Organization, UN Office of the High Commissioner for Refugees, Universal Postal Union, World Confederation of Labour, World Federation of Trade Unions, World Health Organization, World Intellectual Property Organization, World Meteorological Organization, World Tourism Organization, and World Trade Organization.

Among Ike's objectives in not directly confronting McCarthy was to prevent McCarthy from dragging the Atomic Energy Commission into McCarthy's witch hunt for communists, which would interfere with, and perhaps delay, the AEC's important work on H-bombs.

EDuke was released as a patch for Atomic Edition users on July 28, 2000, and included a demo mod made by several beta testers.

After the war, Fermi served for a short time on the General Advisory Committee of the Atomic Energy Commission, a scientific committee chaired by J. Robert Oppenheimer which advised the commission on nuclear matters and policy.

* 1958 – The Peace symbol, commissioned by Campaign for Nuclear Disarmament in protest against the Atomic Weapons Research Establishment, is designed and completed by Gerald Holtom.

Singer has worked as a consultant for several government agencies, including the House Select Committee on Space, NASA, the Government Accountability Office, the National Science Foundation, the United States Atomic Energy Commission, National Research Council, the Department of Defense Strategic Defense Initiative, Department of Energy Nuclear Waste Panel, and the Department of the Treasury.

EG & G became a prime contractor for the Atomic Energy Commission and had a major role in photographing and recording nuclear tests for the United States through the fifties and sixties.

The International Atomic Energy Agency ( IAEA ) is an international organization that seeks to promote the peaceful use of nuclear energy, and to inhibit its use for any military purpose, including nuclear weapons.

During World War II, the government's Manhattan Project made use of Edgerton's discoveries to photograph atomic explosions ; it was a natural evolution that the company would support the Atomic Energy Commission in its weapons research and development after the war.

In these artificial languages an Atomic Sentence is a string of symbols which can represent an elementary sentence in a natural language, and it can be defined as follows.

According to the International Atomic Energy Agency, one kilogram of soil typically contains the following amounts of the following three natural radioisotopes 370 Bq < sup > 40 </ sup > K ( typical range 100-700 Bq ), 25 Bq < sup > 226 </ sup > Ra ( typical range 10-50 Bq ), 25 Bq < sup > 238 </ sup > U ( typical range 10-50 Bq ) and 25 Bq < sup > 232 </ sup > Th ( typical range 7-50 Bq ).

He needed only something to keep him busy, such as in his role as one of the " Fathers of the Atomic Bomb ," and in his creation of " ice-nine ," a potentially catastrophic substance with the capability to destroy all life on Earth, but which he saw merely as a mental puzzle ( a Marine general suggested developing a substance that could freeze and compact mud so soldiers could run across it more easily ).

In 1949, U. S. Atomic Energy Commission chairman, David Lilienthal stated that " atomic energy is not simply a search for new energy, but more significantly a beginning of human history in which faith in knowledge can vitalize man's whole life ".

* 23 September 1962 — The Jetsons animated TV series began on ABC, attempting to humorously depict life in the fully developed Atomic Age of 2062.

The City of Rodentia is menaced by an asteroid, so Professor LaSerne invents a machine to bring a drawing to life, and uses an old copy of Atomic Mouse comics.

The new redesigned Atomic Mouse stops the asteroid, and takes up life on his new planet.

He defeated Sportsmaster, but his match with the Atomic Skull was interrupted by Green Arrow and Black Canary. Black Canary made a deal with Roulette for her to fight her mentor ; if she won, Roulette would ban Wildcat from MetaBrawl forever, but if Wildcat won, Black Canary would never get involved with his life there again.

A complete multi-media encyclopedia emerges through objects and audiovisual representations of all determining elements of life in the Atomic Age.

* Atomic Skull II-Offered greater power and the life of his love, Zelda ( Ray # 18-19 ) ( Underworld Unleashed-Patterns of Fear );

In his early adult life, he formed a band called Atomic Mass with Nicholas Mackley, Rick Savage, Paul Hampshire, and Tony Kenning.

He, in response, told Feklisov that their meetings were “ among the happiest moments of my life .” Feklisov was also the Case Officer for Joel Barr and Alfred Sarant, two other members of the Soviet Atomic Spy Ring.