Chlorin And Sodium Similarities

The ionic bond is a common and significant type of chemical bond which exists in the compound. The process of ionic bonding seems not that difficult to understand. In order to explain more clearly, NaCl which people are familiar with will be taken as an example. As a matter of fact, sodium has only one valence electron while chlorine has seven and they both have the tendency to be more stable. Firstly, the atom of an element (metal mostly) which has low ionization energy releases some electrons to reach the stable configuration; meanwhile the atom of another element (usually nonmetal) gains these electrons. In the example of NaCl, an electron transfers from sodium to chlorine. Next, as a result, the ion that loses electrons becomes the cation while the ion that gains electrons becomes anion. In NaCl, sodium gains a positive charge, forming Na+, at the same time, chlorine gains a negative charge, forming Cl—. Lastly, the electrostatic

Compared with ionic bond, they share several similarities. On one hand, these two bonds are strong interactions between particles which like glue to connect atoms. In other words, it’s hard to break the bonds between the elements. The energy needed to break 1 mole O2 is about 500 KJ and to break 1 mole NaCl, it’s around 768 KJ. On the other hand, particles tending to be stable, their valence electrons are ready to be 8 like noble gases（in very few conditions, it’s 2）. For instance, when N2 is formed, three pairs of electrons are shared, leading to the two particles having 8 valence electrons. When KBr is formed, the two elements also have 8 valence electrons. Furthermore, electrons in ionic bonds and covalent bonds are fixed, however, in metallic bonds, they are delocalized, which means electrons are able to flow freely. In the lattice of NaCl, electrons are restricted in specific space and it’s the same with oxygen compared with electrons in iron which are