Answer:

ion

Answer	Crossword Clue
ION	Charged particle
ION	It may be positive or negative
ION	It's charged

ION	Charged atom
ION	It's all charged up
ION	Kind of exchange
ION	Smoke-detector output
ION	It's not free of charge
ION	Saturn compact
ION	"Positively Entertaining" TV channel
ION	TV channel with procedural reruns

ION	Euripides drama
ION	Cloud-chamber particle
ION	Saturn model
ION	Atom with a charge
ION	Tiriac of tennis
ION	Charged bit
ION	Drama by Euripides
ION	JFK's PT boat

ION	Tennis coach Tiriac
ION	Old Saturn model
ION	Old Saturn compact
ION	Plasma bit
ION	2003-07 Saturn model
ION	It comes with a charge
ION	Bit of a chemist?
ION	Atom with a nonzero valence

ION	Carbonium, for one
ION	Lithium-... battery
ION	One created by hydrolysis
ION	Electrolyte, e.g.
ION	It can't be neutral
ION	Solar-wind particle
ION	... trap (mass-spectrometry apparatus)
ION	CI+, for one

ION	Former Romanian president Iliescu
ION	Suffix with congest
ION	Abstract ending?
ION	Charge carrier
ION	Cyclotron bit