What is the nuclide symbol for the ion that has a charge of 2+,50 neutrons more than its number of protons,and an atomic number equal to the number of electrons in a zirconium atom that has lost 2 electrons?

Question

Quizplus · Accepted Answer

The atomic number of zirconium is 40, meaning it has 40 protons and 40 electrons in a neutral atom. Losing 2 electrons would result in a 2+ ion. Adding 50 neutrons to the atomic number gives 90, which corresponds to the element thorium (Th). Therefore, the nuclide symbol would be 90Th2+. Choice B is the correct nuclide symbol for thorium-90 with a 2+ charge.

What Is the Nuclide Symbol for the Ion That Has