ATOMIC NUMBER

often represented by the symbol Z, the number of protons in the nucleus of an atom, as well as the number of electrons in the neutral atom. Atoms with the same atomic number make up a chemical element. Atomic numbers were first assigned to the elements c.1913 by H. G. J. Moseley; he arranged the elements in an order based on certain characteristics of their X-ray spectra and then numbered them accordingly. The elements are now arranged in the periodic table in the order of their atomic numbers. Mendeleev's periodic law was originally based on atomic weights. See mass number.

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The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

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Questia Books and Articles on: Atomic Number
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books on: Atomic Number  - 5461 results

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1.
Hiroshima and Nagasaki: The Physical, Medical, and Social Effects of the Atomic Bombings
Book by Eisei Ishikawa, David L. Swain, Committee for the Compilation of Materials on Damage Caused by the Atomic Bombs in Hiroshima and Nagasaki; Basic Books, 1981
Subjects: Atomic Bomb--Blast Effect, Atomic Bomb--Physiological Effect, Hiroshima-Shi (Japan)--Bombardment, 1945, Nagasaki-Shi (Japan)--Bombardment, 1945, Nuclear Warfare, Radiation Injuries
...Seishi no Hi" Gakujutsuhen The Atomic Bomb and Hiroshima University...the population exposed to the atomic bomb and of the number of deaths from the viewpoint of...the population exposed to the atomic bomb and the number of deaths...
2.
American Opinion on World Affairs in the Atomic Age
Book by Leonard S. Cottrell Jr., Sylvia Eberhart; Princeton University Press, 1948
Subjects: Atomic Bomb, Public Opinion--United States, United States--Foreign Relations--1945-1953
...control system which would prevent atomic war?" less than...development of constructive uses of atomic energy. The number of such references would of course...oriented around the general topic of atomic energy rather than the bomb. But...
3.
Prompt and Utter Destruction: Truman and the Use of Atomic Bombs against Japan
Book by J. Samuel Walker; University of North Carolina Press, 1997
Subjects: Atomic Bomb, Truman, Harry S.--1884-1972, United States--Foreign Relations--1945-1953, World War, 1939-1945--Japan, World War, 1939-1945--United States
...the need for and the morality of dropping the atomic bombs. Pacifist groups, a number of atomic scientists, some religious leaders and organizations...both liberal and conservative, condemned the atomic attacks because of their indiscriminate killing...
4.
The Decision to Drop the Atomic Bomb
Book by Dennis D. Wainstock; Praeger, 1996
Subjects: Atomic Bomb, Truman, Harry S.--1884-1972, United States--Foreign Relations--1945-1953, World War, 1939-1945--Japan, World War, 1939-1945--United States
undoubtedly involved a large number of Japanese casualties." 44 Clearly...20,000 tons of TNT. It is an atomic bomb." 47 At that instant, according...not have available a sufficient number of atomic bombs with which to finish the job...
5.
The Atomic Bomb Suppressed: American Censorship in Occupied Japan
Book by Monica Braw; M. E. Sharpe, 1991
Subjects: Atomic Bomb--Japan, Freedom Of The Press--Japan, Japan--History--Allied Occupation, 1945-1952, Press--Japan
...to the long-range effect of atomic bombs. The reason given was that, because of the limited number of available facts, one could...that might relate in any way to atomic research. It kept custody of...changes of policies regarding atomic research. 88 SPU thus also...
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journal articles on: Atomic Number  - 2745 results

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1.
Vanguard of American Atomic Deterrence: The Sandia Pioneers, 1946-1949
Journal article by Henry G. Gole; Parameters, Vol. 33, 2003
Subjects: Books--Book reviews, Vanguard of American Atomic Deterrence: The Sandia Pioneers, 1946-1949 (Book)--Book reviews
...aircraft. Involvement in the atomic tests at Eniwetok Atoll in 1948...the industrial production of atomic weapons suitable for military...there was no need for a large number of special teams trained in...indeed the Vanguard of American Atomic Deterrence. The authors have...
2.
Atomic Warfare and the Nuclear Family: Domestic Resistance in Hollywood Films about the A-Bomb
Journal article by Michael Pressler; Film Criticism, Vol. 27, 2003
Subjects: Atomic bomb--Portrayals, depictions, etc., Atomic bomb--Usage, Motion pictures--Criticism, interpretation, etc., Nuclear warfare--Moral and ethical aspects, Nuclear warfare--Portrayals, depictions, etc.
Atomic warfare and the nuclear family: domestic...approve or disapprove of the use of the atomic bomb?" 85 percent of Americans surveyed...when asked, "How worded are you about the atomic bomb?" 65 percent of the some three thousand...
3.
The United States, Japan and the Atomic Bomb
Journal article by Mark Selden; Bulletin of Concerned Asian Scholars, Vol. 23, 1991
Subjects: Asia
...the basis for calculating U.S. atomic requirements. The study included...Soviet industrial cities and the number of atomic bombs needed to destroy each assuming...as "optimum." 3 The Legacy of Atomic War Japanese annihilation of Asian...
4.
Dr. Strangelove's America: Society and Culture in the Atomic Age
Journal article by Michael Mcguckin; Journal of Social History, Vol. 32, 1999
Subjects: Books--Reviews
...credits roll, the deadly atomic mushroom clouds blossom. A chirpy musical number, "Some day well meet again...dreary consequences of the atomic bomb on American culture are...for a more realistic post-atomic age America, not, as in...
5.
Atomic Heroes and Atomic Monsters: American and Japanese Cartoonists Confront the Onset of the Nuclear Age, 1945-80
Journal article by Ferenc M. Szasz, Issei Takechi; The Historian, Vol. 69, 2007
Subjects: Caricatures and cartoons--Authorship, Caricatures and cartoons--Social aspects, Cartooning--Authorship, Cartooning--Social aspects, Cartoons--Authorship, Cartoons--Social aspects, Heroes--Social aspects, Manga literature--History, Manga literature--Social aspects, World War II, 1939-1945--Influence, World War II, 1939-1945--Portrayals, World War II, 1939-1945--Social aspects
...Binder and Beck created a number of Captain Marvel "atomic parables." In October...confronted the onset of Atomic War. The cover depicts...apology for the use of atomic weapons, an apology...42) Not only did a number of villains apologize...
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magazine articles on: Atomic Number  - 2426 results

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1.
Strengthening Nuclear Safeguards: Urgent Action Is Needed to Shore Up the Ability of the International Atomic Energy Agency to Detect Nuclear Weapons Programs and Safeguard Peaceful Nuclear Programs
Magazine article by Charles D. Ferguson; Issues in Science and Technology, Vol. 24, Spring 2008
Subjects: International Atomic Energy Agency--Powers and duties, International security--Management, Nuclear arms control--International aspects, Nuclear arms control--Laws, regulations and rules, Nuclear nonproliferation--Evaluation, Security, International--Management
...Ability of the International Atomic Energy Agency to Detect Nuclear...illustrate, the International Atomic Energy Agency (IAEA) is confronting...programs. This crisis stems from a number of factors: discriminatory...safeguards, which is to reduce the number of nuclear weapons in the world...
2.
The Raid on Truk Lagoon: Many Younger Americans Have Gained the Impression That America Dropped Atomic Bombs on Japan to Avenge Pearl Harbor, but Our Revenge Happened at Truk Lagoon
Magazine article by Roger D. Mcgrath; The New American, Vol. 27, February 21, 2011
Subjects: Atomic bomb--Military aspects, Atomic bombs--Military aspects, United States. Navy
...Younger Americans Have Gained the Impression That America Dropped Atomic Bombs on Japan to Avenge Pearl Harbor, but Our Revenge Happened...17 February, but the Japanese were not able to get near the number of their aircraft into the air this second time. Then came...
3.
Atomic Medicine: Military Concerns Drove the Development of Nuclear Weapons. but a By-Product of This Huge Deployment of Scientific Resources by the US and the UK Was an Upsurge in Biological Research Leading to a New Age of Regenerative Medicine. Alison Kraft Discusses the History of Stem Cell Biology
Magazine article by Alison Kraft; History Today, Vol. 59, November 2009
Subjects: Aerial bombing--Health aspects, Bombing, Aerial--Health aspects, Hiroshima Bombardment, 1945--Health aspects, Nagasaki Bombardment, 1945--Health aspects, Stem cell research--History
...powerful stem cell therapies, the atomic heritage of stem cell biology...forgotten. The Manhattan Project The atomic bombs dropped on Japan in 1945...Germany might be developing an atomic bomb following a number of advances in nuclear physics...
4.
Fallout: Art and Design in the Atomic Age
Magazine article by Pedro Ponce; Humanities, Vol. 22, July 2001
Subjects: Art, Art exhibits, Design, History, Popular culture, United States
...with the production of mass numbers of bombers, aircraft carriers...the first chairman of the Atomic Energy Commission, referred to the sun itself as "a huge atomic-energy factory." The tempered...new organic aesthetic of the Atomic Age was the offshoot of a number of earlier movements such as...
5.
The Atomic Bomb, the Cold War, and the Soviet Threat
Magazine article by Alan G. Nasser; Monthly Review, Vol. 41, December 1989
Subjects: Cold War--History, Eastern Europe--International relations, International relations--Analysis, Soviet Union, Soviet foreign relations--United States, United States, United States foreign relations--Soviet Union, Western Europe--International relations
...in the updated edition of Atomic Diplomacy, originally published...The new edition draws on a number of crucial, recently released...induced Truman to use the atomic bomb twice against the Japanese in August, 1945. Atomic Diplomacy reconstructs the...
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newspaper articles on: Atomic Number  - 1251 results

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1.
ATOMIC NUMBER; Black Country Band Promote Debut Single: RockMusic
Newspaper article; Coventry Evening Telegraph (England), October 9, 2009
ATOMIC NUMBER; Black Country Band Promote Debut Single: RockMusic. Byline: ALAN POOLE ISOLATED ATOMS, a Black Country outfit strongly tipped...
2.
N. Korea Frustrates Nuclear Inspectors; Atomic Agency Toughens Stance
Newspaper article; The Washington Times, August 26, 2002
Subjects: International Atomic Energy Agency
...Korea frustrates nuclear inspectors; Atomic agency toughens stance Byline: Nicholas...TIMES VIENNA, Austria - The International Atomic Energy Agency says it is increasingly...gatherings almost meaningless. "They have a number of very good people, so weve had some...
3.
U.N. Reports Iranian Nuclear Problems; Program Shut Down for a Day; Number of Installed Centrifuges Declines
Newspaper article; The Washington Times (Washington, DC), November 24, 2010
Subjects: International Atomic Energy Agency--Reports, Iranian foreign relations--Reports, Nuclear facilities--Reports, Nuclear facilities--Statistics, United Nations. Security Council--Reports, Uranium--Reports, Uranium--Statistics
...Program Shut Down for a Day; Number of Installed Centrifuges Declines...outlets, the International Atomic Energy Agency (IAEA) noted...fed uranium on Nov. 16. The number of installed centrifuges, the...has not harmed the countrys atomic program and accused the West...
4.
We Can Get Atomic Kitten to No 1 with Your Help; It's Your ECHO Have YOUR Say on Your Favourite Newspaper
Newspaper article; Liverpool Echo (Liverpool, England), January 31, 2008
Subjects: Musicians, Newspapers
We Can Get Atomic Kitten to No 1 with Your Help...week by chalking up another number one hit. The ECHO has been encouraging readers to download Atomic Kittens new single Anyone...will appeal to young (due to Atomic Kitten) and old (due to...
5.
Our Atomic Secrets
Newspaper article; Evening Gazette (Middlesbrough, England), August 1, 2011
...involved in the development of the atomic bomb. ICIs work was under the...the programme to develop the atomic bomb. The book has been produced...parts for the development of the atomic bomb were produced at a number of secret locations on Teesside...
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encyclopedia articles on: Atomic Number  - 204 results

       More encyclopedia Results: 1-10 11-20 21-30 31-40 41-50 >>  
 
1.
Atomic Number
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...Atoms with the same atomic number make up a chemical element . Atomic numbers were first assigned...order of their atomic numbers. Mendeleevs periodic...originally based on atomic weights . See mass number...
2.
Atomic Weight
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...insignificant amounts of other isotopes. Therefore, since the atomic mass of any isotope is very nearly a whole number, most atomic weights are nearly whole numbers, e.g., hydrogen has atomic weight 1.00797 and nitrogen has atomic weight 14.007...
3.
Atomic Mass
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...neutron weighs about 1 amu, and thus the atomic mass is always very close to the mass number (total number of protons and neutrons in...isotope of an element all have the same atomic mass. Atomic masses are usually determined by mass spectrography...
4.
Atomic Bomb
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...the need to have used them. Atomic bombs were subsequently developed...1960), and China (1964). A number of other nations, particularly...Israel, and North Korea now have atomic bombs or the capability to produce...have been removed to Russia. Atomic bombs have been designed by...
5.
Mass Number
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...chemical element have the same atomic number (number of protons in the nucleus) but may have different mass numbers (from having different numbers of neutrons in the nucleus...element with the same mass number make up an isotope of the...
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