1.) Based on the N/Z ratio, size of the nuclide, and knowledge of stable nuclides, what...
1.) Based on the N/Z ratio, size of the nuclide, and knowledge of stable nuclides, what mode of decay is most likely for the following nuclides?
a. Potassium-40
b. Chlorine-41
c. Oxygen-20
d. Thorium-224
e. Carbon-15
2) Oxygen-16 is one of the most stable nuclides. The mass of an oxygen-16 atom is 15.994915. Calculate the mass defect (or the binding energy) of oxygen forming from neutrons and protons in kJ/mol.
Homework Answers
1. C. Beta minus. (Beta-)
D. Alpha into Rn-220
A. All 3 types of beta decay
B. Beta-
E. Beta -
2. Mass defect = sum of the mass of the nucleons - mass of the nucleus
O has 8 protons = 1.00728×8 = 8.05824
8 neutrons= 1.00867×8= 8.06936
Total mass of nucleons = 16.1276
Mass defect = 16.1276 - 15.994915 = 0.132685
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