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When an atom of an element bonds to an atom of the same element, the resulting bond is a nonpolar covalent bond because both atoms have the same electronegativity.
Diatomic means made up of two atoms. Cl2 has a single covalent bond. O2 has an interesting bond. A simple description is double bond. What is surprising is that oxygen is paramagnetic, and has two unpaire electrons. This is explained by molecular orbital theory- where like nitrogen a triple bond is formed but the two extra electrons (O Z= 6; N Z=5) are in two antibonding orbitals - making them unpaired )
Common diatomic molecules can be remembered using the anagram HOFBrINCl (Hydrogen, Oxygen, Fluorine, Bromine, Iodine, Nitrogen, Chlorine). Diatomic molecules don't have to be composed of only one type of element (homonuclear). Carbon Monoxide (CO) is also an example of a diatomic molecule.
An example of a molecule that contains only one type of atom is a diatomic gas. Diatomic gases include Hydrogen, Oxygen and Nitrogen. Inert gases are not diatomic. A molecule of any element is made up of one type of atom. So carbon, hydrogen, oxygen and ozone molecules, among many others, are each made up of one type of atom. However the oxygen molecule is made of atoms that are different from those in the hydrogen molecule.
Carbonic acid (H2CO3) has the main compound, carbon, in the middle. carbon has a double bond with oxygen (indicated by two lines pointing towards oxygen), then it has two covalent bonds with two other oxygen molecules. those oxygen molecules have one bond each to hydrogen. here is the best illustration: http://en.wikipedia.org/wiki/File:Carbonic-acid-2D.svg
A covalent bond
When an atom of an element bonds to an atom of the same element, the resulting bond is a nonpolar covalent bond because both atoms have the same electronegativity.
Diatomic means made up of two atoms. Cl2 has a single covalent bond. O2 has an interesting bond. A simple description is double bond. What is surprising is that oxygen is paramagnetic, and has two unpaire electrons. This is explained by molecular orbital theory- where like nitrogen a triple bond is formed but the two extra electrons (O Z= 6; N Z=5) are in two antibonding orbitals - making them unpaired )
Covalent bond between oxygen and hydrogen in water. Intermoleculat hydrogen bond between water molecules.
Common diatomic molecules can be remembered using the anagram HOFBrINCl (Hydrogen, Oxygen, Fluorine, Bromine, Iodine, Nitrogen, Chlorine). Diatomic molecules don't have to be composed of only one type of element (homonuclear). Carbon Monoxide (CO) is also an example of a diatomic molecule.
An example of a molecule that contains only one type of atom is a diatomic gas. Diatomic gases include Hydrogen, Oxygen and Nitrogen. Inert gases are not diatomic. A molecule of any element is made up of one type of atom. So carbon, hydrogen, oxygen and ozone molecules, among many others, are each made up of one type of atom. However the oxygen molecule is made of atoms that are different from those in the hydrogen molecule.
You might be thinking of Oxygen, which is capable of bonding with itself to make O2. If, however, you mean two different atoms, you are mistaken. An element only has one type of atom; that's the whole very nature of an element. They're the most basic substances in the universe.
covalent bond
covalent bond
Carbonic acid (H2CO3) has the main compound, carbon, in the middle. carbon has a double bond with oxygen (indicated by two lines pointing towards oxygen), then it has two covalent bonds with two other oxygen molecules. those oxygen molecules have one bond each to hydrogen. here is the best illustration: http://en.wikipedia.org/wiki/File:Carbonic-acid-2D.svg
Hydrogen is linked by a covalent bond to an atom of oxygen. The covalent bonds are polar, as the oxygen atoms have a slight negative charge.
Atoms with high electronegativity tend to for covalent bonds.