Multiple choice general knowledge science & technology If two protons are removed from an oxygen nucleus, the result is: Carbon Neon Nitrogen Helium Reveal answer Fill a bubble to check yourself A Correct answer Explanation An oxygen nucleus has 8 protons. Removing 2 protons leaves 6 protons, which is the atomic number of carbon. Therefore, the resulting nucleus would be carbon, as the atomic number (proton count) determines the element.