- #1
A M
- 83
- 16
- TL;DR Summary
- I have 3 main questions:
As it's written in the following article, nuclear binding energy is always a positive number; thus it takes energy to disassemble a nucleus into its nucleons.
...The binding energy is always a positive number, as we need to spend energy in moving these nucleons, attracted to each other by the strong nuclear force, away from each other... [Wikipedia]
And according to this diagram, some unstable nuclei like U_235 and U_238 have positive binding energy per nucleon (about 7.5 Mev) even greater than many stable ones'.
So, why should a radioactive nucleus (with BE/N higher than many stable nucleus) decay?
What does the stability of nuclei depend on?
And I also have a question about half life;
If decay energy of the nucleus -or anything else that makes it decay- is greater than nuclear binding energy, the unstable nucleus is expected to suddenly get disassembled into its component NUCLEONS. Or it shouldn't be created at all...
But they are stable for a consistent period of time and then converse to other NUCLEI.
⁉ Would you please explain the reason?
I would be grateful if anyone could elucidate these problems.
A M
...The binding energy is always a positive number, as we need to spend energy in moving these nucleons, attracted to each other by the strong nuclear force, away from each other... [Wikipedia]
And according to this diagram, some unstable nuclei like U_235 and U_238 have positive binding energy per nucleon (about 7.5 Mev) even greater than many stable ones'.
What does the stability of nuclei depend on?
And I also have a question about half life;
If decay energy of the nucleus -or anything else that makes it decay- is greater than nuclear binding energy, the unstable nucleus is expected to suddenly get disassembled into its component NUCLEONS. Or it shouldn't be created at all...
But they are stable for a consistent period of time and then converse to other NUCLEI.
⁉ Would you please explain the reason?
I would be grateful if anyone could elucidate these problems.
A M
A person who never made a mistake, never tried anything new.
-Albert Einstein