Lecture 5 Notes 53750

Lecture 5 Notes 53750 - Lecture 5 Notes B A Rowland 53750...

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

View Full Document Right Arrow Icon
Lecture 5 Notes B. A. Rowland 53750 Atomic Configurations We can assign atomic electronic configurations via one of two methods. The first is by using the periodic table. If you recognize the s-, p-, d-, and f-blocks of the periodic table you can figure out the electronic configuration of most atoms by building up to the appropriate atomic number. The second (and perhaps easier) method is by utilizing the Aufbau (German for “construction”) principle. By writing down the orbitals in shells (starting with 1s) and then drawing diagonal lines (see below) you automatically have the order of filling. When you reach the s-orbital at the end of one arrow you move to the next arrow down and start with those orbitals. With this in mind, we see that the order would be 1s2s2p3s3p4s3d4p5s4d5p6s4f5d6p etc. This is the same order you would find running across the periods in the periodic table (remember a period is a horizontal row; the first row is the first period). When you write your chart out you should include all orbitals up to n = 7, since there are 7 periods in the periodic table. Remember that each s-orbital will hold a maximum of 2 electrons, each p-orbital will hold 6 electrons (2 electrons for each of 3 subshells), each d-orbital will hold 10 electrons (2 electrons for each of 5 subshells), and each f-orbital will hold 14 electrons (2 electrons
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.

This note was uploaded on 02/02/2009 for the course CH 53750 taught by Professor Rowland during the Spring '09 term at University of Texas.

Page1 / 3

Lecture 5 Notes 53750 - Lecture 5 Notes B A Rowland 53750...

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