Periodic Table The most useful tool in the Lab. Early Organization J.W. Dobereiner (1829) organized elements in triads Triad – three elements with similar.
Ch 6 The Periodic Table And Periodic Law Short2
The How and Why
The How and Why. 2 History Elements known to ancients: C, Cu, Au, Fe, Pb, Hg, Ag, S, Sn Added before 1700: As, Sb, Bi, P, Zn Dobereiner, Johann (1780-1849):
Unit 3 – The Electron Chapter 5 Test:. Review of Atomic Theory Bohr determined that the e - travel around the nucleus according to energy Electrons must.
