232.0381
The atomic weight (not mass !) of thorium is 232,0381.
The atomic weight of thorium 232 is 232,0381
You have it backwards. The atomic weight of thorium 90 is 232.0381
Thorium, with the chemical symbol Th, is the chemical element with the atomic number 90.
Unfortunately WikiAnswers doesn't accept subscript/superscript.For the isotope thorium-232: 232Th90232 is a superscript (mass number) and 90 is a subscript (atomic number).
234 is the mass of that particular Uranium isotope. Exactly 234,040 952 088 ± 0,000 001 960 u.a.
The mass defect of thorium refers to the difference between the mass of the individual protons and neutrons in its nucleus and the actual mass of the thorium atom. This mass defect arises because some mass is converted into binding energy that holds the nucleus together, as described by Einstein's equation, E=mc². For thorium-232, which is the most common isotope, the mass defect is approximately 0.180 atomic mass units (u). This binding energy is crucial for the stability of the nucleus.
Alpha emission means a He (A=4, Z=2) core is released along with energy. Helium's atomic number is 2 and the atomic mass is 4. So when Thorium (A=x, Z=90) emits an alpha particle it becomes a Radium (A=x-4, Z=88). By the way: Thorium is very vague when it comes to nuclear physics. It's important to state the atomic mass of the atom. There exist many forms of each element, called isotopes.
The element with a mass number of 216 is thorium (Th), which has an atomic number of 90. Thorium is a radioactive element that can be found in nature and is used in nuclear reactors and as a fertile material for producing nuclear fuel.
The density of Thallium is 11,850 kg/m3 or 11.85 g/cm3. The SI density standard is kg/m3.
Thorium is a member of the actinoids family; the atomic number is 90.
Alpha decay is basically a helium atom, so 235-4= 231. And 92-2=90 (Uranium's atomic number minus helium's). The element with atomic number 90 is Thorium. The mass is 231, so you should have Th-231 (Thorium-231).