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QUESTION
Rubidium ignites spontaneously when exposed to oxygen to form rubidium oxide, Rb2O. Rubidium exists as two isotopes: 8537Rb (84.91 u) and 8737Rb (86.91 u). If the average atomic mass of rubidium is 85
Rubidium ignites spontaneously when exposed to oxygen to form rubidium oxide, Rb2O. Rubidium exists as two isotopes: 8537Rb (84.91 u) and 8737Rb (86.91 u). If the average atomic mass of rubidium is 85.47 u determine the percentage abundance of 8537Rb ?
