Homework Solution
TQ 13-12
lead ----> Pb ----> see Periodic Table ----> Z = 82 = number of protons mass number = 206 ----> A = 206 = number of nucleons (neutrons + protons) Since, A = Z + N N = A - Z N = 206 - 82 = 124 ANS
lead ----> Pb ----> see Periodic Table ---->
Z = 82 = number of protons
mass number = 206 ---->
A = 206 = number of nucleons (neutrons + protons)
Since,
A = Z + N
N = A - Z
N = 206 - 82 = 124 ANS