The actinide series
thorium
Actinides
55 protons and electrons and 78 neutrons
232Th has 142 neutrons and 90 protons and electrons.
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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, with the chemical symbol Th, is the chemical element with the atomic number 90.
Thorium is a metal element. There are 90 electrons in a single atom.
A transition element of f-block Thorium has 90 electrons in natural state, it is a Radioactive element.
Thorium 230 has 90 protons and 140 neutrons - the difference is 50.
Thorium has 90 electrons.
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's atomic number is 90. Thus, thorium has 90 protons per atom. To be electrically neutral then, thorium must also have 90 electrons per atom.
55 protons and electrons and 78 neutrons
The standard atom has 90 electrons. An ion might have more or less.
Thorium has 90 electrons.
90 in ground state