A valid Lewis structure of __________ cannot be drawn without violating the octet rule.

Chemical bonding is the process by which atoms are held together in chemical compounds. The three main types of chemical bonds are: Covalent bonds: Atoms share electrons to reach the octet state. This type of bonding often occurs between nonmetals from the right side of the periodic table. Ionic bonds: Form between ions with opposite charges, such as between a metal and a nonmetal. Ionic bonds are formed by the transfer of electrons between atoms/molecules. They are the basis for many materials, including plastics and glasses. Metallic bonds: Occur in metals, where electrons are shared... Show more

Chemical bonding is the process by which atoms are held together in chemical compounds.

The three main types of chemical bonds are:
Covalent bonds: Atoms share electrons to reach the octet state. This type of bonding often occurs between nonmetals from the right side of the periodic table.
Ionic bonds: Form between ions with opposite charges, such as between a metal and a nonmetal. Ionic bonds are formed by the transfer of electrons between atoms/molecules. They are the basis for many materials, including plastics and glasses.
Metallic bonds: Occur in metals, where electrons are shared among a lattice of atoms. 

Other concepts of chemical bonding include:
Hydrogen bonding: An electrostatic force of attraction between a hydrogen atom and an atom containing a lone pair of electrons in a chemical substance.
Resonance: A structure with more resonance structure is more stable.
Bond polarity: A feature of chemical bonds, where two different atoms in the same molecule have different electronegativity.
Molecular orbital theory: A productive model of chemical bonding that is the basis of quantitative calculations, including those regarding the computer-generated images. 

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