ionti fu'ivla

x₁ is an ion of radical/(atom of element)x₂ with x₃ charges

In notes:

anxodi: x₁ is a anode/positive electrode.
katxodi: x₁ is a cathode/negative electrode.
dropanra zei ionti: x1 is a hydrogenic ion of element/isotope x2; x1 is isoelectronic to/with hydrogen; x1 is an x2 atom with exactly one electron
ma'u zei ionti: x₁ is an cation of radical/(atom of element)x₂ with x₃ charges.
ni'u zei ionti: x₁ is an anion of radical/(atom of element)x₂ with x₃ charges.