Bulgarian йон

← Bulgarian -он (affix)

← Bulgarian иде́щ (cognate)

← Ancient Greek ἰόν (borrowed)

← Ancient Greek εἶμι (cognate)

→ Bulgarian електрон (cognate)

→ Bulgarian протон (cognate)

→ Bulgarian позитрон (cognate)

→ Bulgarian неутрон (cognate)

→ Bulgarian йонен (affix)