The schnitzel turned to leather in my mouth, the beer seemed tepid; I left the Emmenthaler untasted. Reginald in Russia Saki. Fernando was a man who had almost as little to say as had schnitzel. The Khaki Boys at Camp Sterling Josephine Chase.
The inner shells of an atomâs electrons are full and stable. For the most part, they contribute little to the way the atom reacts. The largest factor in how an atom reacts is the makeup of its outer shell electrons. The periodic table naturally groups together elements with similar outer shells (Transition metals, halogens, etc.).
In the standard periodic table, the elements are listed in order of increasing atomic number (the number of protons in the nucleus of an atom). A new row (period) is started when a new electron shell has its first electron.he rows of the table are called periods; the columns are called groups. Six groups (columns) have names as well as numbers: for example, group 17 elements are the halogens; and group 18, the noble gases.