In general, most elements have one neutron for every proton. In other words, the
ID: 24409 • Letter: I
Question
In general, most elements have one neutron for every proton. In other words, the ratio of neutron to protons is 1 for most atoms (hydrogen being an important exception). If an isotope of an element has more neutrons than protons, its neutron/proton ratio would be > 1 (?greater than 1?). Conversely, if an isotope of an element has less neutrons than protons, its neutron/proton ratio would be < 1 (?less than 1?). Using the truncated version of the Periodic Table of Elements above and what you know about weighted averages, what can you conclude about the overall neutron/proton ratio for the elements shown?
Explanation / Answer
neutron/proton ratio > 1 i.e, has more neutrons than protons weighted averages is nearly twice of their atomic numbers.