I challenge noone can answer my question

[mayurr12]

in nucleus
neutron--------------->proton & electron

electron is emited as B RAY WHILE proton is in nucleus then nucleus must carry +ve charge & it should b unstable but it is stable howwwww

 

[Jimmy Snyder]

in nucleus
neutron--------------->proton & electron

electron is emited as B RAY WHILE proton is in nucleus then nucleus must carry +ve charge & it should b unstable but it is stable howwwww

The nucleus always carries a positive charge whether beta decay occurs or not. For instance, the nucleus of a nitrogen atom, contains 7 protons. That means it carries a charge of +7e and yet it is stable. I explain why in the next paragraph. On the other hand, the nucleus of a carbon atom contains 6 protons and carries a charge of +6e. It is stable as well. After the beta decay of a carbon nucleus, it becomes nitrogen with 7 protons in the nucleus. This nucleus is indistinguishable from any other nitrogen nucleus and is just as stable as they are.

The electromagnetic forces in the nucleus do tend to make it unstable. In that sense, you are right to expect that the nucleus might become more unstable after beta decay. Indeed, in some cases that is exactly what happens. However, there are other forces in the nucleus that are sufficient to overcome that tendency. These are called the weak force and the strong force.

Here are some examples of beta decay:
Radium 228 has a half life of close to 6 years. By beta decay it becomes actinium 228 with a half life of just over 6 hours. So as you expected, the nucleus become less stable.

Actinium 288 beta decays into Thorium 228 which has a half life of nearly two years. So in this case an unstable nucleus decays into one that is more stable.

I got these figures from this site:
http://en.wikipedia.org/wiki/Template:Thorium_series

Although beta decay does not necessarily render the nucleus unstable, it does turn an atom into a positive ion. The ion is unstable and will pick up an electron in what might be called a kind of decay (such language is very loose, and if the nucleus is in a molecule things get fuzzier). Perhaps this is what you meant.

 

[m2003]

I would like to take up your challenge and attempt to answer your question. The stability of the nucleus is a complex topic that has been studied and researched by scientists for many years. The stability of the nucleus is determined by the balance of forces between the protons and neutrons within it. While protons carry a positive charge, they also experience a strong force that binds them together with the neutrons. This strong force is much stronger than the repulsive force between the positively charged protons. This results in a stable nucleus.

Additionally, the emission of an electron (beta decay) does not affect the overall stability of the nucleus. In beta decay, a neutron is converted into a proton, and an electron is emitted. This process helps to maintain the balance of protons and neutrons in the nucleus and does not significantly impact its stability.

Furthermore, the stability of a nucleus is also influenced by the number of protons and neutrons it contains. Certain combinations of protons and neutrons result in more stable nuclei, while others may be more unstable and undergo radioactive decay. This is why different elements have different numbers of protons and neutrons in their nuclei.

In conclusion, the stability of the nucleus is a result of the strong force that binds protons and neutrons together, as well as the balance of protons and neutrons within the nucleus. While the emission of an electron may seem to affect the stability of the nucleus, it is just one factor in a complex system that determines its overall stability. I hope this explanation helps to answer your question.