Determining the atomic number, mass number, and chemical name during beta decay!! 1. The problem statement, all variables and given/known data The image below shows the element Thorium with the atomic number listed above and a mass number of 233. This element undergoes two successive beta decays. The resulting nucleus will have an atomic number of (1) __________ and a mass number of (2) __________. The chemical name for the nucleus is (3) __________. (BTW, there was no image shown in the homework, but it can be implied that the the atomic number of Thorium is 90.) 2. Relevant equations Thorium (Atomic Number = 90) 3. The attempt at a solution (1) 92 (2) 233 (3) Uranium-233 I submitted these answers on my homework, but I only got 2/3 correct, meaning one of my answers was wrong. What answer was wrong?? Could it be that #3 should just be Uranium (I'm not sure what a chemical name is...)?