Properties of Nuclear Forces: What are Nuclear Forces

The protons which repeal each other electrostatically & the neutron which exert no electric force are held extremely close together inside a stable nucleus. In this topic, we will learn the properties of nuclear forces.  

Obviously, there are some forces operating within the nucleus which bind neutron to proton (n-p forces), proton to protons ( p-p forces), and neutron to neutron (n-n forces). These forces bind the nucleus.

Properties of Nuclear Forces

Nuclear forces have the following properties:  

i) They are attractive: The overall effect of Nuclear forces is attractive otherwise the nucleus will not exist.  

ii) They are non-electric: The nuclear forces cannot be of an electrical nature. If it will so, the protons will repel one another.  

iii) They are non-gravitational. 

iv) They are extremely strong: Nuclear forces are the strongest known forces in nature. Therefore they provide stability to the nucleus.  

v) They are extremely short-range forces: These forces are applicable only in a small region of the order of 10^-15 m. These forces do not obey the inverse square law.  

vi) They are spin-dependent: Experimental pieces of evidence show that the nuclear force acting between two nucleons depends upon the mutual orientation of spins of nucleons.

e.g. a neutron and a proton are kept together forming a deuteron only if their spins are parallel to each other.   I hope you get all the properties of nuclear forces.

Suggested Readings: Principle of Relativity

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