1-Of all elements,fluorines atoms attaract electrons most strongly.When fluorine atoms form cvalent bonds with other kinds of atoms,are the bonds polar or nonpolar?2-Use the periodic table to find the number of valence electrons for calcium[ca],aluminum[al],rubidum[rb],oxygen[o],sulfur[s],and iodine[i].then use that information to predict the formula for each of the following compounds: calcium oxide,aluminum iodide,rudidium sulfide,and aluminum oxide.3-Elemenr z is a yellow solid that melts at 100 c and does not conduct electricty.what type of bond holds the emelents atoms toghet?explain the reasoning for your answer.4-Explain why a solid ionic compound does not conduct electricity,but the compound will do so when melted or dissolved in water.5-suppose you were given two mineral crystals that looks alike.how would you determine the idntity of each?IF YOU ANSWER ALL THESE FIVE QUESTIONS,I MEAN ALL FIVE YOU WILL BE CHOSE AS BEST ANSWERED.]NO RUDE ANSWERED
I went over the problem and found that there was an error in a conversionThe thickness is in fact 1.6 10^-2mmI too have the same problem to do for my Chemistry class homework.
1) Could be considered polar or non-polar, depending upon the other element's electron affinityPolar is more common2) The Group number will give you the valence electrons for the elements you listedFor ionic compounds Rubidium will have +1, Calcium +2 Aluminum +3For the non-metals Iodine -1, and both Oxygen and Sulfur -2You should be able to balance these to for the compounds listed3) There is no element that melts at 100 °CSulfur is close at about 120 °CIf it is yellow, it is not a metalIt will have covalent bonds4) In the solid ionic compound, the ions are held in place by the crystal structureThe ions can move if the compound is melted or disolved5) Hardness, refractive index, solubility, reaction to acid, crystal structure and chemical analysis could all be used.
