Question

Write the atomic symbol (^A_ZX) for each of the following isotopes.  

1. Z = 8, number of neutrons = 9  
2. The isotope of chlorine in which A = 37
3. Z = 27, A = 60
4. Number of protons = 26. number of neutrons = 31  
5. The isotope of I with a mass number of 131
6. Z = 3, number of neutrons = 4