ࡱ> 352M bjbj== &WW lnnnnnnn L]> > > > > > > > $ 3Zn> > > > > f nn> > f f f > :n> n> f > f f 0nn0> 2 $ x R00-0]0 0f  nnnnInstructors Copy Lab Worksheet: Its A Chemical Attraction Purpose: To observe the chemical properties of elements from two families. Observations: Record the NAMES and SYMBOLS of the members of the alkaline earth family. 1. Beryllium (Be) 4. Strontium (Sr) 2. Magnesium (Mg) 5. Barium (Ba) 3. Calcium (Ca) 6. Radium (Ra) Record the NAMES and SYMBOLS of the members of the halogen family (first four). 7. Fluorine (F) 9. Bromine (Br) 8. Chlorine (Cl) 10. Iodine (I) Data Table 1: Reactions of the alkaline earth family with sodium carbonate Test tubeSolution testedObservations with sodium carbonateAMagnesium nitrateWhite precipitate formed (should be small particles, but students may not notice this)BCalcium nitrateWhite precipitate formed (particles should be a little bit bigger)Hypothesize what will happen in tubes C & DWhite precipitate will formCStrontium nitrateWhite precipitate formed (coarser) DBarium nitrateWhite precipitate formed (coarsest)  Data Table 2: Reactions of the halogen family with silver nitrate Test tubeSolution testedReaction with silver nitrateAPotassium chlorideWhite precipitate formed Hypothesize what will happen in tubes B & CWhite precipitate will formBPotassium bromideCreamy (yellow-white) precipitate formed CPotassium iodideYellow precipitate formed  Related Questions/Conclusions: 11. Describe one chemical property of the alkaline earth family. Ability to form a white precipitate when reacted with sodium carbonate 12. Describe one chemical property of the halogen family. Ability to form a precipitate that goes from white to yellow as you go down the group. 13. When you look at the periodic table, the halogen family is labeled Group VIIA. What does the number VII indicate? That halogens have 7 valence electrons 14. The alkaline earth family is labeled Group IIA. What does the number 2 indicate about this family? That alkaline earth family elements have 2 valence electrons How many valence electrons do the following elements have? 15. carbon ___4__ 16. phosphorus __5___ 17. nitrogen __5__ 18. List one characteristic of all members of the Noble Gas Family, Group VIIIA. The are inert or they have 8 valence electrons or they are gases 19. Several drops of sodium carbonate are added to a solution of beryllium nitrate. Predict the results. A white precipitate will form (might also put very fine particles) 20. Several drops of silver nitrate are added to a solution of sodium fluoride. Predict the results. A very white precipitate (any mention of yellow would be wrong, but give partial credit if they say a precipitate will form)  $03?FR?>k<v + @ Z ( P & S K L a b v w  7 5>*CJ\>*CJ 5CJ\CJC>? 0RS?IY| $$Ifa$$a$|}>?kxrlXxfl$f`$If$If$If$If $$Ifa$~$$IflF '2 06    4 la }$If$If $$Ifa$l$$Ifl40 '"064 la<FVstxrlrjhxxx$If$If $$Ifa$~$$IflF '2 06    4 la tvf$~$$IflF '2 06    4 la$If$If$If $$Ifa$ + , }$If$If $$Ifa$l$$Ifl40 '"064 la, - / @ Z [ \ ] | } xrlrjjjjjh$If$If $$Ifa$~$$IflF '2 06    4 la   I J % & S T  < O f z {     01/ =!"#$% i0@0 Normal_HmH sH tH 6@6 Heading 1$$@&a$CJ0@0 Heading 2$@&CJ6`6 Heading 3$@& 5CJ\<A@< Default Paragraph Font0B`0 Body Text 5CJ\ & z z :>? 0RS?IY|}>?k<FVstv+,-/@Z[\]|}  IJ %&ST<Ofz{   0 1 (000000000000000000000000000000000000000000000000000000000000000000000000(00000000000(0000(000000000(0000000000|t,    ,. PAGT^ks ::::: #= !!#/2?EQ=?FUVrtuv+-./?@Z\ IBM Preferred CustomerMC:\WINDOWS\Application Data\Microsoft\Word\AutoRecovery save of Document1.asdIBM Preferred CustomerIC:\WINDOWS\Desktop\Physical Science\Atoms\Family of element worksheet.docIBM Preferred CustomerIC:\WINDOWS\Desktop\Physical Science\Atoms\Family of element worksheet.doc scilabteacherC:\Documents and Settings\Administrator\Desktop\Lesson Plans - 11\It's A Chemical Attraction\Lab Worksheet - It's A Chemical Attraction.doc scilabteacherC:\Documents and Settings\Administrator\Application Data\Microsoft\Word\AutoRecovery save of Lab Worksheet - It's A Chemical Attraction.asd scilabteacherC:\Documents and Settings\Administrator\Application Data\Microsoft\Word\AutoRecovery save of Lab Worksheet - It's A Chemical Attraction.asd scilabteacher^E:\Lesson Plan - It's A Chemical Attraction\Instructor's Copy - It's A Chemical Attraction.doc 0R?IY|}>?k<FVstv,-/@[\ @ t ' `@UnknownGz Times New Roman5Symbol3& z Arial"qhT5fT5f!>0 X2QEC:\WINDOWS\Application Data\Microsoft\Templates\Worksheet blank 2.dot0Name ___________________________________________IBM Preferred Customer scilabteacherOh+'0 ( @L h t  1Name ___________________________________________ed ameIBM Preferred Customer_BM Worksheet blank 2omscilabteacherk 2ilMicrosoft Word 9.0m@F#@@$@$՜.+,0 hp|   _  1Name ___________________________________________ Title  !#$%&'()+,-./014Root Entry Fs$61TableWordDocument&SummaryInformation("DocumentSummaryInformation8*CompObjjObjectPools$s$  FMicrosoft Word Document MSWordDocWord.Document.89q