alkaline-earth element
31Caesium — xenon ← caesium → barium Rb ↑ Cs ↓ Fr …
32Gold — This article is about the metal. For the color, see Gold (color). For other uses, see Gold (disambiguation). platinum ← gold → mercury …
33Manganese — Not to be confused with Magnesium. This article is about the chemical element. For the ghost town, see Manganese, Minnesota. For the steamship, see SS Manganese. chromium ← manganese → iron ↑ Mn ↓ Tc …
34Nickel — This article is about the chemical element. For other uses, see Nickel (disambiguation). cobalt ← nickel → copper ↑ Ni ↓ Pd …
35Iron — Fe redirects here. For other uses, see Fe (disambiguation). This article is about the chemical element. For other uses, see Iron (disambiguation). manganese …
36Neodymium — praseodymium ← neodymium → promethium ↑ Nd ↓ U …
37Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ …
38Rhenium — tungsten ← rhenium → osmium Tc ↑ Re ↓ Bh …
39Samarium — promethium ← samarium → europium ↑ Sm ↓ …
40Ytterbium — Yb redirects here. For the unit of information, see Yottabit. thulium ← ytterbium → lutetium ↑ Yb ↓ No …
