Answer
a) $^{52}$Mn
b) $^{22}$Ne
c) $^{107}$Ag
d) $^{127}$I
e) $^{239}$Pu
Work Step by Step
The number of neutrons and protons together equal the mass number, the number in the top left corner. The amount of protons dictates which element the atom is - these can be found on the periodic table by finding the corresponding atomic number to the number of protons given. Finally, since for all of the questions, the number of protons is equivalent to the number of electrons, all of the species are neutral.
