What are mand n in the rate law equation?
Rate = k[A]”[B]"

A (they are experimentally determined exponents)

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a