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Thorium has an atomic number of 90, or in other words, 90 protons in its nucleus. The mass number or the identification of the -232 isotope with its 142 neutrons is a red herring - in isotopy the number of neutrons may vary but the atomic number or the count of protons is the same. If the atomic number varied from 90 it would by definition no longer be thorium.
What else can I help you with?
How many protons does beryllium?
Beryllium has 4 protons
How many protons does strontium have?
You can tell how many protons an element has from its atomic number. So the atomic number of Strontium is 38..so it has 38 protons.
How many protons does the isotopes from copper have?
26 protons
How many protons are in radium?
Radium has 88 protons.
How many protons are in the element Be?
Beryllium has four protons.
How many protons is in osimum?
Osmium has as many protons as it needs
How many protons have helium?
2 protons
How many protons does iorn have?
It has 26 protons.
How many protons does?
Bohrium has 107 protons.
How many protons does have iron have?
26 protons
How many protons is in yllrium?
39 protons
How many protons does carbon ion have?
how many protons does the carbonate ion have?
How many protons does beryllium?
Beryllium has 4 protons
How many protons in oxygen?
Oxygen has eight protons.
How many protons are neutrons?
None -- all protons are protons, which are different from neutrons.
How many protons does livermorium have?
Livermorium has 116 protons.
How many protons does flerovium have?
Flerovium has 114 protons.
