The train between Naples and Sorrento is a very cheap and quick way to travel between the two cities. Unfortunately, it also happens to be one of the worst in terms of pick-pocketing.
Definition of Element. 1) A substance that cannot be decomposed into simpler substances by chemical means. 2) One of the 116 presently known substances that cannot be decomposed by chemical reaction into a simpler substance. Elements comprise all matter at and above the atomic level.
Quick Answer. A chemical element is a substance made up of one type of atom. The known chemical elements are arranged on a periodic table in order of their atomic numbers, which represent the number of protons in one atom of an element. Continue Reading.