In Chemistry, what are elements?

An element with reference to the use of the word in
Chemistry is a substance that has only one type of atom and cannot be split further into
smaller stable components.

An element has atoms which
consist of electrons, protons and neutrons. Different elements are distinguished by the
number of protons they have in their nucleus. This is also called the atomic number.
Right now 118 different types of elements are known. 82 of these are found in nature and
the others have been created during radioactive reactions. Atoms of different elements
are the basic blocks of chemistry with atoms combining with each other to form
molecules.