Two isotopes, 212X and 190Y, have protons that add up to 161. Find the names of the elements X and Y if the difference b
Posted: Mon Jul 11, 2022 1:56 pm
Two isotopes, 212X and 190Y, have protons that add up to 161.Find the names of the elements X and Y if thedifference between the neutron counts of the isotopes is 15.