In its widest sense, a drama is any work designed to be presented by actors. It is a real or fictional depiction of characters and events presented to an audience. More commonly in modern usage, a...
A chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus.
In physics and chemistry, an element is a substance made of identical atoms, each having the same number of protons in their nuclei. Elements can have isotopes, which are atoms having a different...