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NUCLEAR FORCE

Physics

NUCLEAR FORCE

1. Nucleons are held together by short range forces. The neutrons in the nucleus help reduce the repulsive forces of the positively charged protons as they “space” them out.
2. When there are less than about 25 protons in a nucleus, there are the same number of neutrons.
3. As nuclei get heavier (Z > 25), the relative number of neutrons needs to increase to counteract the increased electrostatic repulsive forces.


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REFERENCES

1. Bushberg, J. T. (2012). The essential physics of medical imaging. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. Find it at Amazon
2. Heggie, J. C., Liddell, N. A., & Maher, K. P. (1997). Applied imaging technology. Melbourne: St. Vincents Hospital.

Ⓒ A. Manickam 2018

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