50. Give the symbol for the atom that corresponds to each electron configuration. a. 1s2 2s2 2p6 3s2 3p6
b. 1s 2s 2p 3s2 3p6 3d10 4s2 4p6 4d7 5s1
c. 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f7 5s2 5p6 5d1 6s2

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action