Con los siguientes elementos: 37Rb 33As 52Te 1H 8O 56Ba 53I forme seis compuestos con enlace iónico. Debe hacer la representación de Lewis, indicando los electrones transferidos , las cargas eléctricas de los átomos y la fórmula de cada compuesto formado.

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.