Respuesta :
The difference in mass between the smaller nuclei that fuse together and the newly formed heavier nucleus, called mass defect.
What is mass?
A tangible body's mass is the amount of matter it possesses. It's also a metric of inertial, or the resistance to velocity when a net force is exerted.
When two small, light nuclei collide and fuse to form a larger nucleus, this is known as nuclear fusion.
One helium nucleus has a mass that is less than the sum of four hydrogen nuclei.
The missing mass, also known as a mass defect, is transformed to energy and radiates outward.
Thus, the difference in mass between the smaller nuclei that fuse together and the newly formed heavier nucleus, called mass defect.
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