Activity #31: The Periodic Table Ways the Periodic Table is Organized Color code your periodic table by family like the one below. You will need 9 colors- they do not have to be the same as those in the picture. Make a key that shows which color represents which family of elements. Periodic Table Families Alkali Metals Alkaline Earth Metals Transition Metals Rare Earth Elements Noble Gases Metalloids Halogens Non Metals Other Metals

Activity #31: The Periodic Table Ways the Periodic Table is Organized Take Cornell Notes on the following ways the periodic table is organized. Be sure to give examples as well as the definition: Family Metals, Nonmetals, and Metalloids Groups Periods Reactivity Atomic Number

Ways the Periodic Table is Organized Family- Elements grouped together by properties. Ex. Alkali metals, Halogens, Noble gases…etc.

Ways the Periodic Table is Organized Metals: shiny, easily shaped, good conductor of electricity and heat Non metals: has properties generally opposite of metals Metalloids: elements that have properties of metals and non metals

Ways the Periodic Table is Organized Groups- vertical columns, elements have similar physical properties; Ex. Group 1 contains Hydrogen, Lithium, Sodium, etc. ** Number the groups across the top of your periodic table!

Ways the Periodic Table is Organized Periods- horizontal rows, a proton is added to each element from left to right; ex. Period 2 contains Lithium, Beryllium, Boron, etc. ** Number the periods on the left side of your periodic table!

Ways the Periodic Table is Organized Reactivity- how likely an element is to undergo a chemical change; Elements in groups 1 and 17 are highly reactive and chemically react easily with other elements https://www.youtube.com/watch?v=J7b2aBKa6-U (video on Halogens from Group 17)

Ways the Periodic Table is Organized Atomic Number- the number of protons in the nucleus of an atom; the atomic number increases from left to right; Ex: the atomic number of Hydrogen is 1, Helium 2, Lithium 3….