When is Nuclear decay is more likely to occur?
1. the mass number is greater than 83

2. the atomic number is greater than 83

the sum of the number of electrons + the atomic 3. number is greater than 83

4. the sum of the mass number + the number of electrons is greater than 83

Question

When is Nuclear decay is more likely to occur?   
1. the mass number is greater than 83 

 2. the atomic number is greater than 83 
 
the sum of the number of electrons + the atomic 3. number is greater than 83 
 
4. the sum of the mass number + the number of electrons is greater than 83

stephstar101 · Answer

The atomic number is greater than 83 because that's when elements start becoming radioactive