Uranium-234 decays to lead-214 through a series of alpha decays. which of the following is the total number of alpha particles emitted in this decay series?
a. 1
b. 2
c. 5
d. 10

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.