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Key People:Sakip SabanciAntoine LavoisierLouis Bernard Guyton de MorveauCarl Wilhelm ScheeleMartin Heinrich Klaproth...(Show more)Related Topics:Chemical bondingChemical analysiscoordicountry compoundorganometallic compoundChemical reactivity...(Show more)

Chemical compound, any substance created of identical molecules consisting of atoms of two or more chemical aspects.

All the issue in the universe is composed of the atoms of even more than 100 various chemical aspects, which are uncovered both in pure create and combined in chemical compounds. A sample of any kind of offered pure element is created just of the atoms characteristic of that element, and the atoms of each element are distinct. For example, the atoms that constitute carbon are various from those that consist of iron, which are subsequently various from those of gold. Eextremely aspect is designated by a unique symbol consisting of one, two, or 3 letters arising from either the existing facet name or its original (regularly Latin) name. For instance, the icons for carbon, hydrogen, and oxygen are simply C, H, and O, respectively. The symbol for iron is Fe, from its original Latin name ferrum. The basic principle of the scientific research of chemisattempt is that the atoms of different aspects have the right to combine through one another to develop chemical compounds. Methane, for instance, which is developed from the facets carbon and also hydrogen in the ratio four hydrogen atoms for each carbon atom, is well-known to contain distinct CH4 molecules. The formula of a compound—such as CH4—shows the forms of atoms present, via subscripts representing the family member numbers of atoms (although the character 1 is never before written).

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A water molecule is consisted of of 2 hydrogen atoms and also one oxygen atom. A single oxygen atom includes 6 electrons in its external shell, which have the right to organize a total of eight electrons. When two hydrogen atoms are bound to an oxygen atom, the outer electron shell of oxygen is filled.