Which of the following correctly shows a prefix with its corresponding number?

One of the few xenon compounds that form is cesium xenon heptafluoride (csxef7). how many moles of csxef7 can be produced from the reaction of 13.0 mol cesium fluoride with 12.5 mol xenon hexafluoride? csf(s) + xef6(s) csxef7(s)

How many atoms are there in 5.70 mol of mg

Give the orbital configuration of the phosphorus (p) atom.