Respuesta :
The expected radius of a nucleus having 82 protons and 125 neutrons would be 5.2 FM.
What are the consistents of an atom?
Protons, which have a positive charge, and neutrons, which have no charge, make up its structure. All regular, naturally occurring atoms contain the long-lived particles protons, neutrons, and electrons that orbit them. These three categories of particles may be found together or separately from other subatomic particles. To put it another way, an atom consists of a nucleus, protons, electrons, and neutrons. The mass number is equal to the sum of the protons' (atomic number Z) and neutrons' (neutrons' (N) numbers) (A). Nucleons are the constituent "particles" of the nuclei.
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