Answer
B, E, F, G, J
Work Step by Step
a) could be predicted but with great uncertainty in the energy
b) when its electrons are excited and emit photons returning to the ground state
c,d) would require knowing the position and velocity
e, f) observable in laboratory experiments
g) Ionization energy can be measured
h,i) their size is much smaller than microscopes can see.
j) visible to the naked eye
