Unstable nuclei attain stability through disintegration. The nuclear stability is related to neutron proton ratio `(n//p)`. For stable nuclei `n//p` ratio lies close to unity for elements with low atmoic numbers (20 or less) but it is more than 1 for nuclei having higher atomic numbers. Nuclei having `n//p` ratio either very high or low undergo nuclear transformation. When `n//p` ratio is higher than required for stability, the nuclei have the tendency to emit `beta`-rays. while when `n//p` ratio is lower than required for stability, the nuclei either emits `alpha`-particles or a positron or capture `K`-electron.

Unstable nuclei attain stability through disintegration. The nuclear stability is related to neutron proton ratio (n/p). For stable nuclei n/p ratio lies close to unity for elements with low atomic numbers (20 or less) but it is more than 1 for nuclei having higher atomic numbers. Nuclei having n/p ratio either very high or low undergo nuclear transformation. when n/p ratio is higher than required for stabilioty, the nuclei have the tendency to emit beta -rays. While when n/p ratio is lower than required for stability, the nucleieither emits alpha -particles or a position or capture K-electron. The order of radioactive disinigration is

Unstable nuclei attain stability through disintegration. The nuclear stability is related to neutron proton ratio (n/p). For stable nuclei n/p ratio lies close to unity for elements with low atomic numbers (20 or less) but it is more than 1 for nuclei having higher atomic numbers. Nuclei having n/p ratio either very high or low undergo nuclear transformation. when n/p ratio is higher than required for stabilioty, the nuclei have the tendency to emit beta -rays. While when n/p ratio is lower than required for stability, the nucleieither emits alpha -particles or a position or capture K-electron. Unstable substance exhibit high radioactivity due to

If n//p ratio is high, the nucleus tends to stabilize by :

If n//p ratio is high, the nucleus tends to stabilize by :

An atomic nucleus having low n/p ratio tries to find stability by

An unstable nuclide with N/P ratio more than that required for stability can attain stability by

An unstable nuclide with N/P ratio more than that required for stability can attain stability by