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proton
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A simplified look into the structure of an atom
atoms
protons, neutrons, pions, and other hadrons Figure 9: Proton force. The interaction energy of two protons is shown as a function of the distance between them. At small separations, the energy is positive and the force is repulsive. At intermediate distances, the nuclear interaction is negative and the force is attractive. At distances larger than shown on the graph, the nuclear force becomes negligible and the repulsive electric force between the two charges is all that is left. The interaction depicted is for protons with antiparallel spins. measuring correlation between photons Higgs boson production proton-antiproton collision Figure 13: Nuclear vibratory motion in the giant dipole resonance. Protons and neutrons move in opposite directions.
Why is carbon called the element of life?
View an animation explaining how small things like electrons and protons can behave like particles and sometimes like waves
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Periodic Table of the elements concept image (chemistry)
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Periods of American Literature
Vietnam War. U.S. President Lyndon B. Johnson awards the Distinguished Service Cross to First Lieutenant Marty A. Hammer, during a visit to military personnel, Cam Ranh Bay, South Vietnam, October 26, 1966. President Johnson
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Remarkable new details of Pluto's largest moon Charon are revealed in this image from New Horizons' Long Range Reconnaissance Imager (LORRI), taken late on July 13, 2015 from a distance of 289,000 miles
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In this aerial photo, structures are damaged and destroyed October 15, 2005 in Balakot, Pakistan. It is estimated that 90% of the city of Balakot was leveled by the earthquake. The death toll in the 7.6 magnitude earthquake that struck northern Pakistan on October 8, 2005 is believed to be 38,000 with at least 1,300 more dead in Indian Kashmir. SEE CONTENT NOTES.
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protons, neutrons, pions, and other hadrons
Figure 9: Proton force. The interaction energy of two protons is shown as a function of the distance between them. At small separations, the energy is positive and the force is repulsive. At intermediate distances, the nuclear interaction is negative and the force is attractive. At distances larger than shown on the graph, the nuclear force becomes negligible and the repulsive electric force between the two charges is all that is left. The interaction depicted is for protons with antiparallel spins.
measuring correlation between photons
Higgs boson production
proton-antiproton collision
Figure 13: Nuclear vibratory motion in the giant dipole resonance. Protons and neutrons move in opposite directions.
A simplified look into the structure of an atom
atoms
Why is carbon called the element of life?
View an animation explaining how small things like electrons and protons can behave like particles and sometimes like waves
See All Videos and Images →

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Key People

Stern, Otto
Otto Stern
American physicist
Robert Hofstadter
American physicist
Otto Robert Frisch
Austrian physicist

Related Quizzes and Features

Quiz
Periodic Table of the elements concept image (chemistry)
Facts You Should Know: The Periodic Table Quiz
Periodic Table of the elements concept image (chemistry)
Facts You Should Know: The Periodic Table Quiz