thepage="Atomic Theory - Element, Mass, and Moles" //globals //11/18/02-updated netscape 7 refnumber=40 d=0 attempts=0 whichset=0 totl=0 corrt=0 option=0 val="" ans="" theans=new Array() theanswer="" function dataset(name,sym,mass){ this.name=name this.sym=sym this.mass=mass } atom=new Array(); atom[1]=new dataset("hydrogen","H",1.00) atom[2]=new dataset("helium","He",4.00) atom[3]=new dataset("lithium","Li",6.94) atom[4]=new dataset("beryllium","Be",9.01) atom[5]=new dataset("boron","B",10.8) atom[6]=new dataset("carbon","C",12.0) atom[7]=new dataset("nitrogen","N",14.0) atom[8]=new dataset("oxygen","O",16.0) atom[9]=new dataset("fluorine","F",19.0) atom[10]=new dataset("neon","Ne",20.2) atom[11]=new dataset("sodium","Na",23.0) atom[12]=new dataset("magnesium","Mg",24.3) atom[13]=new dataset("aluminum","Al",27.0) atom[14]=new dataset("silicon","Si",28.1) atom[15]=new dataset("phosphorous","P",31.0) atom[16]=new dataset("sulfur","S",32.1) atom[17]=new dataset("chlorine","Cl",35.5) atom[18]=new dataset("argon","Ar",40.0) atom[19]=new dataset("potassium","K",39.1) atom[20]=new dataset("calcium","Ca",40.1) atom[21]=new dataset("scandium","Sc",45) atom[22]=new dataset("titanium","Ti",47.9) atom[23]=new dataset("vanadium","V",50.9) atom[24]=new dataset("chromium","Cr",52.0) atom[25]=new dataset("manganese","Mn",54.9) atom[26]=new dataset("iron","Fe",55.8) atom[27]=new dataset("cobalt","Co",58.9) atom[28]=new dataset("nickel","Ni",58.7) atom[29]=new dataset("copper","Cu",63.5) atom[30]=new dataset("zinc","Zn",65.4) atom[31]=new dataset("gallium","Ga",69.7) atom[32]=new dataset("germanium","Ge",72.6) atom[33]=new dataset("arsenic","As",74.9) atom[34]=new dataset("selenium","Se",79.0) atom[35]=new dataset("bromine","Br",79.9) atom[36]=new dataset("krypton","Kr",83.8) atom[37]=new dataset("rubidium","Rb",85.5) atom[38]=new dataset("strontium","Sr",87.6) atom[39]=new dataset("yttrium","Y",88.9) atom[40]=new dataset("zirconium","Zr",91.2) atom[41]=new dataset("niobium","Nb",92.9) atom[42]=new dataset("molybdenum","Mo",95.9) atom[43]=new dataset("technetium","Tc",98) atom[44]=new dataset("ruthenium","Ru",101) atom[45]=new dataset("rhodium","Rh",103) atom[46]=new dataset("palladium","Pd",106.4) atom[47]=new dataset("silver","Ag",108) atom[48]=new dataset("cadmium","Cd",112.4) atom[49]=new dataset("indium","In",114.8) atom[50]=new dataset("tin","Sn",50,118.7) atom[51]=new dataset("antimony","Sb",121.7) atom[52]=new dataset("tellurium","Te",127.6) atom[53]=new dataset("iodine","I",127) atom[54]=new dataset("xenon","Xe",131.3) atom[55]=new dataset("cesium","Cs",133) atom[56]=new dataset("barium","Ba",137.3) atom[57]=new dataset("lanthanum","La",139) atom[58]=new dataset("cerium","Ce",140) atom[59]=new dataset("praseodymium","Pr",141) atom[60]=new dataset("neodymium","Nd",144) atom[61]=new dataset("promethium","Pm",147) atom[62]=new dataset("samarium","Sm",150.4) atom[63]=new dataset("europium","Eu",152) atom[64]=new dataset("gadollinium","Gd",157) atom[65]=new dataset("terbium","Tb",159) atom[66]=new dataset("dysprosium","Dy",162.5) atom[67]=new dataset("holmium","Ho",165) atom[68]=new dataset("erbium","Er",167.3) atom[69]=new dataset("thullum","Tm",169) atom[70]=new dataset("ytterbium","Yb",173) atom[71]=new dataset("lutetium","Lu",175) atom[72]=new dataset("hafnium","Hf",178.5) atom[73]=new dataset("tantalum","Ta",181) atom[74]=new dataset("tungsten","W",184) atom[75]=new dataset("rhenium","Re",186) atom[76]=new dataset("osmium","Os",190) atom[77]=new dataset("iridium","Ir",192) atom[78]=new dataset("platinum","Pt",195) atom[79]=new dataset("gold","Au",197) atom[80]=new dataset("mercury","Hg",200) atom[81]=new dataset("thallium","Tl",204) atom[82]=new dataset("lead","Pb",207) atom[83]=new dataset("astatine","At",210) atom[84]=new dataset("radon","Rn",222) atom[85]=new dataset("francium","Fr",223) atom[86]=new dataset("radium","Ra",226) atom[87]=new dataset("actinium","Ac",227) atom[88]=new dataset("thorium","Th",232) atom[89]=new dataset("protactinium","Pa",231) atom[90]=new dataset("uranium","U",238) atom[91]=new dataset("neptunium","Np",237) atom[92]=new dataset("plutonium","Pu",244) atom[93]=new dataset("americium","Am",243) atom[94]=new dataset("californium","Cf",251) atom[95]=new dataset("einsteinum","Es",254) atom[96]=new dataset("fermium","Fm",257) atom[97]=new dataset("mendelevium","Md",258) function parts(p1,p2,p3){ this.p1=p1 this.p2=p2 this.p3=p3 } question=new Array() question[1]=new parts("How many moles is "," grams of ","?") question[2]=new parts("What is the mass in grams of "," moles of ","?") question[3]=new parts("If a sample of an element has a mass of ","grams and contains ","moles, what is the element? Enter its atomic symbol in the answer cell.") question[4]=new parts("A "," mole sample of an element has a mass of "," grams. Identify the element and enter its atomic symbol in the answer cell.") bequation=new Array() bequation[1]="moles=mass/gaw
" bequation[2]="mass=moles*gaw
" bequation[3]="gaw=mass/moles
" function startit(){ clear() totl++ document.forms[0].total.value=totl d=Math.ceil(97*Math.random()) moles(d) } function moles(d){ var mass=number(100*Math.random(),3,3) var moles=number(mass/atom[d]["mass"],3,3) var id=atom[d].sym thequest=mass+";"+moles+";"+id buildquest(mass,moles,id) } function buildquest(mass,moles,id){ option=Math.ceil(3*Math.random()) if(option==1){ thequest=question[1].p1+mass+question[1].p2+id+question[1].p3 ans=moles } if(option==2){ thequest=question[2].p1+moles+question[2].p2+id+question[2].p3 ans=mass } if(option==3){ if(Math.random()>.5)thequest=question[3].p1+mass+question[3].p2+moles+question[3].p3; else thequest=question[4].p1+moles+question[4].p2+mass+question[4].p3; ans=id } buildanswer(option,mass,moles,id) showquest(thequest) } function answer(val){ attempts++ if(tried==1)alert("You've done this one. Get a new problem!"); else{ if(tried==2){totl++;document.forms[0].total.value=totl}; if(option==3){ if(val==ans){ tried=1 document.forms[0].results.value="Correct" corrt++ document.forms[0].correct.value=corrt } else {tried=2;document.forms[0].results.value="Incorrect"} } else if(val>.95*ans & val<1.05*ans){ tried=1 document.forms[0].results.value="Correct" corrt++ document.forms[0].correct.value=corrt } else{ document.forms[0].results.value="Incorrect" tried=2 } }} function buildanswer(option,mass,moles,id){ theanswer=bequation[option] if(option==1){theanswer=theanswer+mass+"/"+atom[d].mass+"="+moles} if(option==2){theanswer=theanswer+moles+"*"+atom[d].mass+"="+mass} if(option==3){theanswer=theanswer+mass+"/"+moles+"="+atom[d].mass+"
The element is "+atom[d].sym} }