CHM 111 Lecture Notes - Lecture 9: Julius Lothar Meyer, Alkali Metal, Beryllium

• School: University of Miami
• Department: Chemistry
• Course: CHM 111
• Professor: Lewis Nita

Document Summary

Periodic table of elements (cid:403) the modern periodic table grew out of the independent work of dmitri mendeleev, a russian chemistry professor, and german scientist, julius lothar meyer. During this time, about 65 different elements had been discovered and through the work of a number of chemists, many of their properties, such as their relative masses, chemical reactivity, and physical properties, were known. However, there was no systematic way of organizing them. Meyer noticed that certain groups of elements had similar properties and found that when the elements were listed in order of increasing mass, their properties recurred in a periodic pattern. Their observations were summarized in the periodic law, which states the following: However, many elements had not yet been discovered and as a result, represented blank spaces in the table. Nevertheless, the original listing has evolved into the modern periodic table we use today.