Atomic Radius trend on the periodic table.... - increases in size as you move left and downwards on the table., Ionic Radius jumps in size as... - you move from metals to nonmetals within a period., Alkali and Alkaline Earth metals become - more reactive as you move down a group., Halogens become - less reactive as you move down a group, Electronegativity - increases as you move to the right and up on the periodic table; noble gases are not included in the trends, Noble or inert gases - This are the elements that do not react with the others because they have a full valence shell., Alkali metals - These are the group 1 metals that are highly reactive , Alkaline Earth metals - The highly reactive metals that form group 2 on the periodic table, Transition metals - The set of metallic elements occupying a central block (Groups 3-12) in the periodic table, Halogens - These are reactive nonmetallic elements that form strongly acidic compounds with hydrogen from which simple salts can be made. They are found in group 17., Period - A row of chemical elements in the periodic table. They all have the same number of electron shells., Group - A column of elements in the periodic table that have similar reactivity and properties.,

Periodic Table Trends & some properties

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