How many different elements appear in the decay chain? does this match your original prediction? list the elements and explain your answer.
my prediction was 20 isotopes

A decay chain shows a list of elements in the order of decreasing atomic number which is a result from the absorption of beta molecules or alpha molecules. In this case, the different elements involved can vary from the original element that is originally decayed down to the most exhausted radioactive element.

1.state2.trash3.the earth