What is a chemical compound?

The chemical compound is a type of molecule (collection of bound atoms) consisting of more than one element. For example, water (h _{2 o) is a compound, while diatomic hydrogen (H 2 ) is not. Most of the atoms that make up the Earth's crust and living organisms are in a folded form. The compounds are represented by molecular formulas that report the atoms of the ingredients and their abundance.}

Depending on the atoms, the compound may be held together by various chemical ties. The links consist of interactions of atomic electron shells in various orbital configurations. Depending on the number of electrons orbiting atomic orbiting the atom and the amount of space for orbitals, certain atoms are prone to binding with some other types of atoms. Lewis Dots, a graphic system of representation of compound bonds, named after chemist Gilbert Lewis, is often taught in classes of secondary school chemistry. The existence of chemical bonds has been speculated from at least the 12th century, although the whole field was a spaceUsed until the concept of electron bonds introduced Lewis in 1916. These elements can be found on the right side of the periodic table and are called noble gases. Examples include helium, neon and argon.

in chemical compounds is the most common type of covalent binding, where both atoms of ingredients have similar electronegativity, resulting in even electron sharing. Electron orbitals overlap and one electron can circulate both atomic cores, which do not belong exclusively. An example of a molecule held together by covalent ties is a diamond. The second type of binding, ion binding, occurs in atoms with significant differences in electronegativity, where one atomic dominatrix supplying electrons. They are slightly weaker than covalent ties. An example is sodium or salt chloride.

There are other types of binding: metal bonds, Van der Waals and several others. Together they form allNY chemical compounds in space.