PBS
Pbs Learning Media: Periodic Table of the Elements Essay
This essay, written for Teachers' Domain, describes the foresight and pattern recognition that Russian chemist Dmitri Mendeleyev used to develop the modern periodic table of elements.
PBS
Pbs Learning Media: Periodic Table of the Elements
This interactive periodic table developed for Teachers' Domain provides detailed information about the chemical properties of elements and illustrates the electron configurations that determine those characteristics.