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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.

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12y ago
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5mo ago

Thorium-230 has 90 electrons because the number of electrons in an atom is equal to its atomic number, which is 90 for thorium.

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14y ago

Thorium 230 (and also all the isotopes of thorium) has 90 electrons.

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Q: How many electrons does thorium230 have?
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