Someone plz answer ! question 10 unsaved which of the following statements about cobalt (co) and nickel (ni) is true? question 10 options: nickel atoms have more protons than cobalt atoms do. nickel has a greater average atomic mass than cobalt does. nickel and cobalt have the same number of neutrons. cobalt atoms have more electrons than nickel atoms do.

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.