The nuclides , , and have different mass numbers and different atomic numbers, yet they share a spec — Nuclear Chemistry and Radioactivity Chemistry Question

💡 Solution & Explanation

Isotones are defined as atoms of different elements possessing the exact same number of neutrons. For Silicon-30, $n = 30 - 14 = 16$. For Phosphorus-31, $n = 31 - 15 = 16$. For Sulfur-32, $n = 32 - 16 = 16$. Because all three nuclides contain precisely 16 neutrons, they are isotones.