The last answer is correct
13 atoms are in the chemical formula AI(PO4)3
hope that helps :-)
Answer:
us fish and wildlife service
Explanation:
the 2nd choice
I think a good strategy for these kind of problems is to just choose the atom with the highest mass number. At any rate, the answer actually is (and I guessed it as) (2) Francium-220. It has a half life of about 30 seconds.
