Question

How to build Lewis dot structures in ALEKS?

A) Follow Predetermined Rules
B) Use a Random Approach
C) Trial and Error
D) Skip the Structure Building

Answer 1

To build Lewis dot structures in ALEKS, one should follow predetermined rules that involve drawing the structure, determining electron group arrangement using VSEPR theory, predicting deviations in bond angles, and describing the molecular geometry.

Step-by-step explanation:

How to Build Lewis Dot Structures in ALEKS

When building Lewis dot structures in ALEKS, one must follow a systematic approach. This involves:

1. Drawing the Lewis electron structure of the molecule or polyatomic ion.
2. Determining the electron group arrangement around the central atom that minimizes repulsions, which is a concept from the Valence Shell Electron Pair Repulsion (VSEPR) theory.
3. Assigning an AXmEn designation and identifying LP-LP (lone pair-lone pair), LP-BP (lone pair-bonding pair), or BP-BP (bonding pair-bonding pair) interactions to predict deviations in bond angles.
4. Describing the molecular geometry based on the electron group arrangement and the VSEPR theory.

The best answer to the student's question would be Follow Predetermined Rules as this aligns with the methodical nature of drawing accurate Lewis structures.