- Antimony: Sb
- Barium: Ba
- Cerium: Ce
- Cesium: Cs
- Dysprosium: Dy
- Erbium: Er
- Europium: Eu
- Gadolinium: Gd
- Holmium: Ho
- Iodine: I
- Lanthanum: La
- Neodymium: Nd
- Praseodymium: Pr
- Promethium: Pm
- Samarium: Sm
- Tellurium: Te
- Terbium: Tb
- Thulium: Tm
- Xenon: Xe
- Ytterbium: Yb