Journal of Chemical Education
By Peterson,Raymond and David, Treagust
“Investigation of Misconceptions for Valency and Chemical Bonding among High School Students”
Publisher:
4/66
Pp. 59-60
1999
Investigation of Misconceptions for Valency and Chemical Bonding among High School Students
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
Bond Polarity
- Equal sharing of the electrons pair occurs in all covalent bonds.
Shape of molecules
- The shape of molecules is due only to the relation between the nonbonding electron pairs.
- The shape of molecules is due only to the repulsion between the bonding electrons pairs.
- Bond polarity determines the shape of molecules.
Polarity of Molecules
- Nonpolar molecules form when the atoms in the molecule have similar electronegativities.
Intermolecular force
- Intermolecular forces are the forces within a molecule. stronger intermolecular forces exist in a continuous covalent network solid.
Octet rules
- Nitrogen atoms can share five electron pairs in bonding.