(europium)
121Hafnium — lutetium ← hafnium → tantalum Zr ↑ Hf ↓ Rf …
122Mendelevium — fermium ← mendelevium → nobelium Tm ↑ Md ↓ (Upu) …
123Magnesium — Not to be confused with Manganese. sodium ← magnesium → aluminium Be ↑ Mg ↓ Ca …
124Neptunium — uranium ← neptunium → plutonium Pm ↑ Np ↓ (Uqt) …
125Rhenium — tungsten ← rhenium → osmium Tc ↑ Re ↓ Bh …
126Ultraviolet — UV redirects here. For other uses, see UV (disambiguation). UVB redirects here. For the mysterious shortwave radio station in Russia, see UVB 76. For other uses, see Ultraviolet (disambiguation). False color image of the Sun s corona as seen in… …
127Radionuclide — A radionuclide is an atom with an unstable nucleus, which is a nucleus characterized by excess energy available to be imparted either to a newly created radiation particle within the nucleus or to an atomic electron. The radionuclide, in this… …
128Darmstadtium — meitnerium ← darmstadtium → roentgenium Pt ↑ Ds ↓ (Uhn) …
