bioex_lect9

bioex_lect9 - MIT OpenCourseWare http:/ocw.mit.edu 5.111...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
MIT OpenCourseWare http://ocw.mit.edu 5.111 Principles of Chemical Science Fall 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms .
Background image of page 1

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

View Full DocumentRight Arrow Icon
Periodic Trends (or Organization of the Periodic Table) See lectures 9 and 10 for an introduction to periodic trends. Elements within the same group of the periodic table have related valence electron configurations and many similar properties. For example: Li, Na, and K (group 1A) all have one valence electron and are all soft, reactive metals. He, Ne, and Ar (group 8A) all have filled valence shells and are inert. In the late 1800s, the similar chemical properties of related atoms were believed to an extreme. Figure by MIT OpenCourseWare Today, in contrast, we understand that the differences between elements within a given group (many of which may be predicted by periodic trends) are as significant as the similarities. Example
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/02/2012 for the course CHEM 5111 taught by Professor Vogel during the Fall '08 term at MIT.

Page1 / 3

bioex_lect9 - MIT OpenCourseWare http:/ocw.mit.edu 5.111...

This preview shows document pages 1 - 3. Sign up to view the full document.

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