alternate names of erbium(III) cation vs ytterbium(III) cation

erbium(III) cation | alternate names | excluding erbium(III) cation | ytterbium(III) cation | alternate names | excluding ytterbium(III) cation

erbium(III) cation | alternate names | excluding erbium(III) cation | erbium(III) | erbium(3+) ytterbium(III) cation | alternate names | excluding ytterbium(III) cation | ytterbium(III) | ytterbium(3+)