Answer to Question #142888 in Inorganic Chemistry for Roshelle

Question #142888
Explain in terms of electronegativity,why the bonding in NaCl is different from the bonding in SiCl4.
1
Expert's answer
2020-11-09T14:01:00-0500

Sodium chloride has a giant ionic lattice. This formation is due to the ionic bonding, which involves the transfer of electrons from one atom to another to ensure that each atom has a full outer shell of electrons. Sodium will lose the electron to become Na + while chloride will get the electron to form Cl-, While SiCl4 is a cohesive compound, so in solid SiCl4, molecules are bound together by weak inter molecular forces. As a result, ionic compounds have higher melting points. Inter molecular strength is weak, however, requiring less breaking power than ionic bonds, so covalent compounds have lower melting points.


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