Journal of Chemical Education
By Vrabec, Michal and Prokša, Miroslav
“Identifying Misconceptions Related to Chemical Bonding Concepts in the Slovak School System Using the Bonding Representations Inventory as a Diagnostic Tool”
Publisher:
93
Pp. 1364-1370
2016
Identifying Misconceptions Related to Chemical Bonding Concepts in the Slovak School System Using the Bonding Representations Inventory as a Diagnostic Tool
Type: Empirical
Data collection method: Test
Number of subjects, range: Large — 31 or more
Grade and age of subjects: 9th-12 grade — 15-18 years

Covalent bonding

  • Covalent bonds have very different electronegativity.
  • There is a transfer of electrons in covalent bonding.
  • The covalent bond forms between two electrons.
  • The covalent bonding is formed based on octet rule.

Ionic bonding

  • Formation of shared electron pair in ionic compounds Clgives its electron to the sodium atom in NaCl.
  • Ionic bonding is formed based on the octet rule.
  • NaCl is a molecule .
  • The molecules of NaCl form the NaCl structure.
  • The atoms of Na and Cl attract each other and form NaCl.

Symbolic level

  • Spacing of dots between atoms indicates equal sharing.
  • Similar spacing indicates same bond type.
  • Dots represent all the electrons in the compound.

Microscopic level

  • Choosing ionic bonding on a picture representing shared electron pair.
  • Bond type depends on atoms being labeled.
  • Bond type cannot be determined without ± showing.

Other

  • Inability to classify as metals/ nonmetals.
  • Chlorine has smaller electronegativity than carbon.
  • Slightly different electronegativities mean equal sharing.
  • Transfer of electrons is more accurate than attractions.
  • Cations get rid of electrons to become stable.