Theories of Covalent Bonding

Vocabulary practice flashcards based on lecture notes covering Lewis dot structure rules, bonding theories (VBT, MOT, VSEPR), and charge distribution.

Kössel-Lewis

The Electronic theory of Covalent Bonding that leads to the Lewis dot Structure.

MOT

Molecular orbital theory.

VBT

Valance bond theory.

VSEPR

Valance Sholl election Pair Pulsion.

Central atom rules

Criteria include having the least number of atoms, less Electronegativity (E-N), large size, or a higher Atomic number ($\text{At no}$).

H and F

Elements that can never be the central atom in a Lewis dot structure.

2nd period Central Atom

The octate of the central atom must be completed (specifically for $C$, $N$, $O$, and $F$).

3rd period and below Central Atom

The central atom can have $8$ or more than $8$ electrons.

Positive charge location

If a positive charge is present in a species, it will be located on the Central atom.

Negative charge location

If a negative charge is present in a species, such as in $SO_4^{2-}$ or $CO_3^{2-}$, it will be located on the Corner Atom.

Central Atom Example Species

Examples provided include $CH_4$, $NH_8$, $H_2O$, $HPB$, $CO_2$, $SO_2$, and $SOCl_2$.