EOC review 2013Lesson - Periodicity•The Hot Minute (Noexcuses!!!)•Warm up•Pre-assessment 4 corners•Notes with video(?)•Activity for more practice•Practice questions•Exit Pass
The Hot Minute (No Excuses!!!)Write the word “increases” or“decreases” to describe the trendfrom left to right across the periodand from top to bottom, down thegroup.
The Hot Minute (No Excuses!!!)KEYElectronegativeincreases across theperiod.Ionization energyincreases across theperiod.Atomic radius decreasesacross the periodElectronegativitydecreases down thegroup.Ionization energydecreases down thegroup.Atomic radius increasesdown the group.
Warm upWhy do the atomic radii of elements increase as wemove down a group?a) The force of attraction of the protons on the valenceelectron increases.b) Energy levels are added, increasing the distancebetween the nucleus and the valence electrons.c) Atomic number of the elements increase, increasingthe number of valence electrons.
4 corners activityThe periodic table can be used to identify andexplain chemical families and periodic trendsDirt road- I know some things about the periodic tablePaved road- I know what the underlined terms are.Highway- I know the underlined terms and how toidentify families and groups on the periodic tableAutobahn- I know about periods and groups, I can giveexamples on the periodic table of groups and trends.
MiniLessonvideo1 :http://education-portal.com/academy/lesson/the-periodic-table-properties-of-groups-and-periods.htmlStart at 1:38 MainGroups ElementsVideo 2:http://education-portal.com/academy/lesson/ionization-energy-trends-among-groups-and-periods-of-the-periodic-table.htmlstart at 3:13 and stop at6:06Optional:CU-Lesson QuizzesNotes ReflectionPeriodic Trends and Explain, in your own words, why does eachProperties of Period Families property follow the certain trend?Using arrows show the following trends,across a period ( left to right ) and down a group ( top to bottom)Atomic radius .Ionic radius Metals Non metalsElectronegativityIonization energyReactivity Metals Non metalsLocate and mark the following families on the periodic tableAlkali metals (IA)Alkali Erath metals (2A)Halogens (7A)Noble gasses (8A)Transition metals (3-12B)Locate and mark the location of the following elements List the properties of the families on theFluorine Periodic Table and explain why is it importantFrancium to know the properties of different groups ofelements in the Periodic Table.Questions I have or Things I need to remember
Checking for understandingWhich of the following trends is shown?Atomic radiusIonic radiusElectronegativityIonization energyReactivity
Increases in the direction of the arrowFluorine has the highest.Noble gases have the lowest.Electronegativity
ActivityPart I-5minArrange the Periodic Table Cards in a logicalorder on the metal sheet creating a PeriodicTable of the Elements.Using the information on the cards, place thePeriodic Trends Arrows around the PeriodicTable, showing the directions of increase ineach trendAnswer questions 1-4
ActivityPart II-5minPlace the Periodic Table Labels for alkali metals,alkaline earth metals, transitionmetals, halogens and noble gases onto thePeriodic Table of Elements.Answer questions 1-3
The end!QuestionsAnswer first #’s 17-21Exit Pass