Orbitals in Atomic Sublevels:

An atomic orbital can hold no more than two electrons.

Within an electron energy sublevel on the Periodic Table, orbitals are represented by two element squares.

Today's atomic theory also supports orbitals in molecules. They will NOT be covered in this class. Since they WILL be covered in your first college chemistry class, here is some basic information about MOs.

 

Reading the Periodic Table

 
Reading the Periodic Table
 

Measuring the Size of a Molecule

The Periodic Table