Thorium 230 has 90 protons and 140 neutrons - the difference is 50.
Thorium-230 has 90 protons, 90 electrons and 140 neutrons
Thorium-230 has: 90 protons, 90 electrons, 140 neutrons.
All the isotopes of thorium has 90 electrons.
Thorium 230 has 90 electrons and 140 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 has 90 protons. It does not matter which isotope is involved.
The decay is: Th-230-------------Ra-226 + He-4
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Thorium 230 has 90 electrons and 140 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.
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 has 90 electrons.
Thorium has 90 electrons.
Thorium is a metal element. There are 90 electrons in a single atom.
232Th has 142 neutrons and 90 protons and electrons.
Thorium has 90 electrons.
Thorium-232 has 90 protons and electrons and 142 neutrons.
The atomic number of thorium is 90. so it will always have 90 protons in all its isotope.
Thorium (232Th) has 90 protons, 9o electrons and 142 neutrons.
Thorium-238 has 90 protons and electrons and 148 neutrons.