how does covelant bond form ? show the formation of nitrogen molecule ( N 2) How are melting point n boilibg points ,are electrical conductivityof covalent compund dufferent from those of ionic compound ?plz nswer frnds.
Answers
Explanation:
Covalent bond is formed by the Sharing of electrons between atoms to acquire stable electronic configuration.
Example : N₂ molecule
Two Nitrogen atoms with 5 valence electrons and still require 3 more electrons to attain octet. So , the two nitrogen atoms form three covalent bonds between them so that the both atoms acquire octet.
N ≡ N
The covalent compunds posses low melting and boiling points due to weak vanderwaal forces of attraction , where as the ionic compounds posses high melting and boiling points due to strong vanderwaal's forces of attraction because of prescence of oppositely charged ions. Mostly covalent compounds do not conduct electricity . Ionic compounds do not conduct electricity in solid state due to the tight package of ions where as ionic compounds conduct electricity in molten state due to the free movement of ions.