Please help me out this is a test. The imaje shows a plate baundary. Arrows have been added to indicate the movement if the plates.

Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

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)