Problem: Part A. Which of the following would you expect to be a molecule and which would you expect to be part of an ionic solid? Drag the appropriate compounds to their respective bins.CO, NaI, SO, CaS, HCl, KCl, MgO, KFChemical bonds are usually classified as either covalent or ionic. A covalent bond occurs when atoms share electrons. The resulting cluster of atoms is called a molecule, and the compound is considered to be molecular. An ionic bond results from a transfer of one or more electrons from one atom to another. This creates oppositely charged ions that group together into large macroscopic lattices as opposed to small clusters. For this reason, ionic compounds are not considered to be molecular. As a general rule, covalent bonds occur between two nonmetal atoms whereas ionic bonds occur between a metal and a nonmetal atom.

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Part A. Which of the following would you expect to be a molecule and which would you expect to be part of an ionic solid? Drag the appropriate compounds to their respective bins.

CO, NaI, SO, CaS, HCl, KCl, MgO, KF


Chemical bonds are usually classified as either covalent or ionic. 

  • A covalent bond occurs when atoms share electrons. The resulting cluster of atoms is called a molecule, and the compound is considered to be molecular. 
  • An ionic bond results from a transfer of one or more electrons from one atom to another. This creates oppositely charged ions that group together into large macroscopic lattices as opposed to small clusters. For this reason, ionic compounds are not considered to be molecular. 

As a general rule, covalent bonds occur between two nonmetal atoms whereas ionic bonds occur between a metal and a nonmetal atom.

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