To get Polyatomic Ion Particles in The First Descendant, you can kill any mission monster on Fortress. Mission monsters are the powerful yellow bar enemies that can spawn in during missions.

A polyatomic ion that was thus far inaccessible with conventional mass spectroscopy has now been uncovered using extremely short laser pulses. Catching a glimpse of this ion would open up new ...

In the chemistry of interstellar clouds, the three-atomic hydrogen ion plays a key role. In these reactions, also simple organic molecules form. Although H3+ is the simplest polyatomic molecular ...