Fission. When a large fissile atomic nucleus such as uranium-235 or plutonium-239 absorbs a neutron, it may undergo nuclear fission. The heavy nucleus splits into two or more lighter nuclei, (the fission products), releasing kinetic energy, gamma radiation, and free neutrons.
Answer:
\large \boxed{5}
Explanation:
Molecules of NH₄OH do not exist.
If they did, however, here is how you might answer.
Total H atoms = 39 H
-7H₂O =<u> 14 </u>
H atoms available = 25 H
Each "molecule" of NH₄OH contains five H atoms.

The fine adjustment knob focuses an image. The coarse adjustment knod moves the slide up or down.