secondheaviest

The term "secondheaviest" refers to the second element in a list or set when arranged in descending order of weight or mass. This concept is often used in various fields such as physics, chemistry, and material science to describe the second most massive element or object within a given context. For example, in the context of the periodic table of elements, the secondheaviest element is uranium, with an atomic number of 92 and a relative atomic mass of approximately 238.03 u. In astronomy, the secondheaviest known planet in our solar system is Saturn, with a mass of about 5.683 x 10^26 kg. The term is also applicable to other contexts where mass or weight is a relevant factor, such as in the study of subatomic particles or in the analysis of geological samples.