Which question must be answered to complete the table below?
a) what kind of shielding will block beta decay?
b) what is the penetrating power of beta decay?
c) what kind of particles are produced by beta decay?
d) how massive are the particles in beta decay?

Correct option is C.

Explanation: As the alpha decay produces alpha particles, gamma decay produces gamma rays and beta decay produces beta particles. So the first row of the table represents the particles produced during these decays.

So, the question that should be asked in order to complete the table would be: What kind of particles are produced by beta decay?

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;