Name ...



Name:____________________________________ Unit:_________________ Date:_________________Periodic Table Guided Notes Cues: Origin of the Periodic Table:Mendeleev proposed the first arrangement of the periodic table.Arranged by atomic ________________________.Found that as he arranged the elements, similar properties repeated themselvesThere were “gaps” in his table, which led other scientists to discover new elements.Moseley devised the current periodic table which is based on ___________________ _______________________.The Current Periodic Table:Periodic means “________________________________” pattern.The periodic table groups similar elements together (think about sections in the grocery store).Grouping makes it easier to predict the properties of an element.Periods:Periods: _______________________________ rows of elements (7)Just as the number of protons changes as you move from left to right across the periodic table, so does the number of electrons. Remember that sentences are written in rows and end with a period. Groups:Groups: Vertical column of elements on the periodic table (18)Remember that group is spelled groUP and groups go up and down.Elements in the same group have the same number of valence electrons (electrons in the ____________________ shell). Responsible for atomic ____________________________ Equal to the last digit of the group numberValence electrons determine an element’s properties so all elements in the same _________________________ have similar properties.Families of Elements:Think of each element as a member of a family that is related to other elements nearby. Elements are classified as metals, nonmetals or metalloidsGroups are sometimes referred to as ____________________________.Metals:Physical Properties: Shiny (_____________________), good conductors, high density, ductile (can be made into thin wires), malleable (can be hammered into thin sheets) and most are silverChemical Properties: Corrosion (wearing away because of a chemical reaction with water), __________________________ (bond with other atoms)Nonmetals:Physical Properties: No luster, not conductors, brittle, not ductile, low density, and many are gaseous (can be solids or liquids too though) Chemical Properties: Highly reactiveAll, except for ________________________, are on the right hand side of the periodic table. Metalloids:Properties: shiny or dull, conductors (but not as good as metals), ductile and malleableThere are only 6 total Lanthanides and Actinides:Rare ______________________________ elements Most of the actinides have been synthesized by ________________________ scientists (except for uranium and thorium) ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download