Science, Maths & Technology
Using lanthanides as medical imaging tools
...history shows that they are far from rare and are in fact, found abundantly in nature. For instance, neodymium is more abundant than gold, and thulium (which is the least common naturally occurring lanthanide) is more abundant than iodine. The attainment of their rare moniker is instead attributed to their tendency to appear “hidden” one behind another in their...