Try it!

Here is another example to solve for isotope abundance:

[ciscode|rev=1|tool=elmsmedia|item=2768|entity_type=node]

Below is a simulation of isotopes and atomic mass:

Use the simulation above to answer the following questions:

[ciscode|rev=1|tool=elmsmedia|item=3249|entity_type=node|render=display_mode|display_mode=h5p]