How many more neutrons does thorium-230 have than protons? How many electrons does thorium-230 have?

Question

australopithecus · Answer

Thorium has 90 Protons, thus 90 electrons
Number of Protons = Number of Electrons,
Protons have a +1 charge
electrons have a -1 Charge, and electron mass is negligible 

Neutrons + Protons (or Atomic number) = Atomic Mass
Thus,
Neutrons = Atomic Mass - Protons

-We know that thorium has an atomic mass of 230
-We know it is number 90 on the periodic table, which tells us the amount of protons (Its atomic number) it has, because the number of protons dictates its placement on the periodic table.


Hope this helps