AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

Julius Lothar Meyer

Bob Jones PPT Notes -- Chapter 5a

No votes yet

Periodic The Table 1 Lavoisier Made the first list of 30 substances he thought were elements D?bereiner Created a list of elements based on triads triads: groups of 3 elements with similar properties Created a list of elements based on triads problem with triads: Soon more elements were found; there were more than 3 similar elements to a group. D?bereiner periodicity repetition of a property on a regular basis Newlands Arranged elements by atomic mass Observed the ?law of octaves? Every 8th element repeats properties. Included the transition metals Mendeleev Developed the periodic table by arranging elements by atomic mass (like Newlands) Included the transition metals (like Newlands) Mendeleev Left blanks when properties or mass did not fit
Subscribe to RSS - Julius Lothar Meyer

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!