Warm-Up Periodic Table - Ivy Hawn

Warm-Up?Periodic TableLessonQuestionHow is the periodic table arranged?Lesson GoalsIdentify trends in theperiodic tableDetermine theExamine thehistoryof the periodic table.Describe theorganizationof the periodic table.W2K.propertiesof an element usingthe periodic table.Words to KnowFill in this table as you work through the lesson. You may also use the glossary tohelp you.groupa vertical column of elements in the periodic tablea table that organizes the chemical elements in order ofperiodic tableincreasing atomic number and that groups elements basedon similarities in chemical properties and electronconfigurationsperiodatomic mass Edgenuity, Inc.a horizontal row of elements in the periodic tablethe average mass of all isotopes of an element1

Warm-UpPeriodic TableElements Made up of only one type of Combine to form Make upallatomcompoundsmatter in the universe Identified by: Chemical Edgenuity, Inc.Atomicsymbolnumber2

InstructionPeriodic TableSlide2The Periodic Tableperiodic tableTheis an organized display of the elements.History of the Periodic TableSeveral chemists made contributions to the way elements are organized. Thesearrangements eventually led to the modern periodic table.Year: 1789Antoine Lavoisierwrote ElementaryTreatise of Chemistry,whichclassifiedYear: 1829Johann Wolfgang DöbereinerYear: 1865John Newlandsarrangedelements intoarrangedelements according togroups of threebased on similar properties.their.atomic mass.elements as acidforming, gas-like,metallic, or earthy. Edgenuity, Inc.3

InstructionPeriodic TableSlide2Dmitri Mendeleev (1843–1907)PROFILEProduced the firstorderlyPredicted the existence ofarrangement of known elementsnewelements based on his initial arrangementThe First Periodic TableDmitri Mendeleevmass Ordered elements by increasing atomic Observed repetition of Left blank spaces for Used4patterns.chemical propertiesunknown.elements.to predict undiscovered elements.Henry Moseley (1887–1915)PROFILE Arranged elements in order of increasing atomic Accounted for variations resulting from Edgenuity, Inc.Revisednumberisotopesthe periodic table to the modern version4

InstructionPeriodic TableSlide7Trends in the Periodic Table As you move from left to right, the atomic number of each element increasesoneby. As atomic number increases, so does atomic massClassification of Elements on the Periodic TableelementsThe of the periodic table fall into three general categories:metalsshiny usually can be bent into a variety of shapesconductors goodof heat and electricitysolid most examples: iron, tin, and gold nonmetals many aregases often dull and break easily when bent donotconduct electricity or heat well examples: carbon and sulfur Edgenuity, Inc.5

InstructionPeriodic TableSlide7 metalloids look like astaircaseon the periodic tableboth have characteristics ofmetals and nonmetals examples: boron and polonium9Organization of the Periodic Table: PeriodsA horizontal row of elements in the periodic table is called atrendsPeriods follow particular The atomic number The atomicmassperiod.increasesfrom left to right.increases from left to right.Organization of the Periodic Table: GroupsA vertical column of elements in the periodic table is called a Groupnumber Groupname Edgenuity, Inc.(e.g., Group 1)(e.g., Group 1A)Elements within a group have similar Same number ofgroupvalencechemicalproperties.electrons6

InstructionPeriodic TableSlide12Elements of the Periodic Table: Information about Each ElementThere is one square per element on the periodic table. Each square containsimportant information about the element.Example: Nitrogen7 Atomic number: Chemical symbol: Name of element: Atomic mass:7NNNitrogenNitrogen14.0114.01Elements of the Periodic Table: ExampleYou can use the information in an element’s square to determine the number ofprotons, electrons, and neutrons in an atom.19KPotassium39.10Example: Potassium Number of protons (same as atomic number):19 Number of electrons (equal to the number of protons):19 Number of neutrons (subtract number of protons from atomic mass):39 19 Edgenuity, Inc.207

Summary?LessonQuestionPeriodic TableHow is the periodic table arranged?Answer(Sample answer) The periodic table is arranged in periods andgroups. Periods are horizontal rows of elements that followparticular patterns. For example, atomic number and atomic massincrease from left to right. Groups are vertical columns ofelements that have similar chemical properties. Elements in thesame group have the same number of valence electrons. Theelements of the periodic table fall into three general categories: 1)metals, 2) nonmetals, and 3) metalloids. Edgenuity, Inc.8

SummaryPeriodic TableSlide2Review: Key ConceptsSCIENTISTS WHO CREATED THE PERIODIC TABLEDmitri Mendeleev Created firstorderlyarrangement of known elements Ordered elements by atomicmassHenry Moseley Arranged elements by atomic Revised the periodic table to the Edgenuity, Inc.numbermodernversion9

SummaryPeriodic TableSlide2Review: Key ConceptsARRANGEMENT OF THE PERIODIC TABLErowsPeriods – horizontal Atomicnumber AtomicmassGroups – vertical that follow particular patternsincreases from left to rightincreases from left to rightcolumnsSamethat have similar chemical propertiesnumber of valence electronsThree categories of elements: Metals Nonmetals Metalloids Edgenuity, Inc.10

SummaryPeriodic TableSlide2Review: Key ConceptsINFORMATION ABOUT EACH ELEMENTnumberAtomicChemicalName ofsymbolelementAtomic Edgenuity, Inc.mass7NNitrogen14.0111

SummaryPeriodic TableUse this space to write any questions or thoughts about this lesson. Edgenuity, Inc.12

Instruction Periodic Table one Classification of Elements on the Periodic Table The of the periodic table fall into three general categories: usually can be bent into a variety of shapes good of heat and electr