I think maybe reptiles bu i could be wrong. :)
<span>Astatine-217 is the daughter element produced by the alpha decay of Francium-221.</span>
Are cells, tissues, organs, organ systems and organisms<span>.</span>
You can cross multiply and then get k alone so it would look like this:
76 81
----- = ------ = 76k= 24624
304 k ----- ----------- = k = 324
76 76
so k is equal to 324
hope this helps have a nice day
Answer:
a.3-5 is the modal class.