orbitals

How Do We Know Methane Is Tetrahedral?

How Do We Know Methane Is Tetrahedral?

August 25, 2017

In our review of atomic orbitals, we saw that the orbital configuration of the valence electrons of carbon is 2s22p2 as shown below:  Since the 2s orbital is lower in energy than 2p, it’s filled first. That mea…

Read the full article →
Review of Atomic Orbitals

Review of Atomic Orbitals

June 7, 2017

[Note: the following article is intended as a quick review on atomic orbitals for students enrolled in an introductory organic chemistry class who are assumed to have taken general chemistry. It is by no means a compl…

Read the full article →
7 Factors That Stabilize Positive Charge in Organic Chemistry

7 Factors That Stabilize Positive Charge in Organic Chemistry

March 7, 2012

Just to clarify: make sure you’re familiar with how formal charge can lie before you read this. These factors determine the stability of “true” positive charges (i.e. low electron densities), not …

Read the full article →
From Gen Chem to Organic Chem, Pt. 2 – Electrons and Orbitals

From Gen Chem to Organic Chem, Pt. 2 – Electrons and Orbitals

July 14, 2010

[photo credit] An atom is (a little bit) like an Indian bus. This is how they work. You get in and find an empty seat. The seats fill up. Then people stand in the aisle. The aisle fills up. Then people get on the ro…

Read the full article →