Plz explain why ionic compounds are formed when a metal bonds next to a nonmetal and covalent near two nonmetals?
Answers:
i will give u a very simple explanation from which u can realize easily....
Ionic bonds are formed when an atom lends one or more electrons to another atom...
Metals enjoy a very few(i.e. 1,2..) electrons in its valence shell... So, to attain Octet structure, it will be equipped to loose electrons....
Non-Metals have more(i.e. 6,7..) electrons in its valence shell... So, to attain Octet structure, it will be all set to gain electrons....
Thus, when Metals and Non-metals are reacted, Metals loose electrons to Non-metals and forms an ionic bond
Example : When Na(metal) is reacted near Cl(non-metal0, Na donates 1 electron to Cl (Both the atoms attain Octet structure) and forms an Ionic bond...
Covalent bonds are formed by mutual sharing of electron pairs, the electrons being donated by both the atoms....
When two non-metals react, both tries to gain electrons to attain octet structure, but neither will donate the electrons... so, both share their electrons and thus forms a covalent bond...
Example : When 2 atoms of Cl is react, Both will have 7 electrons in it's valence shell... so, both will donate 1 electron to form an electron two of a kind and this pair is shaired by both the atoms., attaining Octet structure and forming a Covalent bond...
i think, it will be immensely useful to u... All the Best... Source(s): My own...
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