D is the only choice here that is appropriate given neutrons' lack of charge
The equation for energy of a photon is E=hv where v equals frequency and h equals the Planck constant (6.626X10^-34). So since you've been given frequency you can just plug in frequency to find the total energy in joules.
E=(3.55X10^17)(6.626X10^-34)
E=2.35223X10^-16
Not sure how many significant figures you needed. Hope this helped.
Both a particle and a wave?
B. elements and compounds
The answer is C since both charge and mass have to be balanced on both sides of the equation.
