Thorium-232 has 90 protons and electrons and 142 neutrons.
Thorium (232Th) has 90 protons, 9o electrons and 142 neutrons.
232Th has 142 neutrons and 90 protons and electrons.
Thorium 230 has 90 protons and 140 neutrons - the difference is 50.
Thorium 232 has 90 electrons and protons, also 142 neutrons.
Thorium-238 has 90 protons and electrons and 148 neutrons.
The atomic number of thorium is 90. So there are 90 protons and 90 electrons. In Th-230 isotope there are 140 neutrons (230 - 90 = 140) So there are 50 more neutrons than the number of protons.
Thorium, or Th, has an atomic number of 90. That means that every atom of thorium has 90 protons. The only naturally abundant isotope of thorium is 232Th, and so therefore it has 232 - 90 = 142 neutrons.
Thorium has 90 protons. So for a neutral atom, there has to be 90 electrons. 230 is the total number of nucleons. ie 90 protons and 140 neutrons.
Thorium 230 has 90 electrons and 140 neutrons.
Thorium-232 has 90 protons and 122 neutrons.
18 protons 18 electrons 22 neutrons
18 protons and electrons and 22 neutrons.