The binding energy per nucleon for most nuclides doesn\'t vary much (see Fig. 43

Question

The binding energy per nucleon for most nuclides doesn't vary much (see Fig. 43.2). Is there similar consistency in the atomic energy of atoms, on an "energy per electron" basis? If so, why? If not, why not? Heavy, unstable nuclei usually decay by emitting an alpha or beta particle. Why don't they usually emit a single proton or neutron? The only two stable nuclides with more protons than neutrons are 11H and 32He. Why is Z > N so uncommon? Since lend is a stable element, why doesn't the 238U decay series shown in Fig. 43.7 stop at lead, 214Pb?

Explanation / Answer

Binding energy per nucleon is the energy which requires to bind all the nucleons into the nucleus

Since all the nucleons are bound together very closely inside the nucleus so the binding energy is almost same for all

Another reason is the nuclear force between the nucleons depends on the dstance between them so here inside nucleus the distance between all is same.

While for electrons energy levels are of different energies because here the cause is not nuclear force but here it is all due to electrostatic force

so we have different energy levels

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.