Chapter 8 notes - CHM 1025 Chapter 8 Lewis Structures and...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 8 Toyota 1 CHM 1025 Chapter 8 Lewis Structures and Molecular Shapes 1. Lewis dot structures for molecular compounds; understanding where valence electrons are in molecules is important for understanding chemistry a. Add up the valence electrons from all the atoms to get the total number of valence electrons b. Write an atomic skeleton c. Draw single bonds (2 electrons) between each pair of bonded atoms d. If any valence electrons remain, add them as unshared electrons (octet rule) e. Move electrons to form double and triple bonds to satisfy the octet rule f. Write the number of valence electrons and then draw Lewis dot structures for the following: i. He _____ v. CH 4 _____ ii. H 2 O _____ vi. CO 2 _____ iii. NH 3 _____ vii. C 2 H 2 _____ iv. BF 3 ______ viii. O 2 _____ 2. Advanced rules a. More on atomic skeletons i. Often symmetrical ii. Usually the central atom is the one that there are less of iii. The central atom tends to be further down and to the left on the periodic table 1. Less electronegative : ___________________________________________________ _____________________________________________________________________.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

Chapter 8 notes - CHM 1025 Chapter 8 Lewis Structures and...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online