What is the average binding energy per nucleon for a u-238 nucleus with a mass defect of 0.184 amu? (1 amu= 1.66 x 10-27 kg; 1 j = 1 kg m2/s2) 2.38 x 10-30 j 2.75 x 10-11 j 1.01 x 10-20 j 1.16 x 10-13 j

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.