You are watching: Which formulas represent ionic compounds and which represent covalent compounds
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ionic bond, also called electrovalent bond, type of linkage developed from the electrostatic attraction in between oppositely charged ion in a chemical compound. Such a bond forms when the valence (outermost) electrons of one atom are transferred permanently to an additional atom. The atom that loses the electrons becomes a positively charged ion (cation), when the one the gains them i do not care a negatively fee ion (anion). A brief treatment the ionic bond follows. For full treatment, see chemistry bonding: The formation of ionic bonds.
Ionic bonding results in compounds known as ionic, or electrovalent, compounds, which are finest exemplified by the compounds formed in between nonmetals and the alkali and also alkaline-earth metals. In ionic crystalline solids the this kind, the electrostatic forces of attraction between opposite charges and repulsion between similar charges orient the ions in together a manner the every hopeful ion becomes surrounded by an adverse ions and also vice versa. In short, the ions room so arranged that the hopeful and an adverse charges alternative and balance one another, the as whole charge the the entire substance gift zero. The size of the electrostatic forces in ionic crystals is considerable. Accordingly, these substances often tend to be hard and also nonvolatile.
Sodium chloride exhibits ionic bonding. The sodium atom has a solitary electron in that is outermost shell, if chlorine needs...
An ionic bond is in reality the extreme case of a polar covalent bond, the latter resulting from unequal share of electrons quite than complete electron transfer. Ionic binding typically type when the distinction in the electronegativities that the 2 atoms is great, when covalent bonds type when the electronegativities are similar. Compare covalent bond.
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