11. Nuclear Chemistry
Types of Radiation
23PRACTICE PROBLEM
Given the number of neutrons (n) and atomic number (Z) of the first four main nuclides of the U-238 radioactive decay series, write their symbols.
AZ I → AZ II → AZ III → AZ IV
I: n = 146; Z = 92
II: n = 144; Z = 90
III: n = 143; Z = 91
IV: n = 142; Z = 92
Given the number of neutrons (n) and atomic number (Z) of the first four main nuclides of the U-238 radioactive decay series, write their symbols.
AZ I → AZ II → AZ III → AZ IV
I: n = 146; Z = 92
II: n = 144; Z = 90
III: n = 143; Z = 91
IV: n = 142; Z = 92