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  2. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    This is a list of prices of chemical elements.Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison.

  3. List of fictional elements, materials, isotopes and subatomic ...

    en.wikipedia.org/wiki/List_of_fictional_elements...

    Trellium is a silvery red god metal with dark red spots similar to rust. It is the solid form of the Shard Autonomy's power. It is around a 9 on the Mohs Hardness Scale and repels Investiture. Unlike most other god metals in the Cosmere it is not commonly known by name of the vessel of the Shard from which it originates which would make it ...

  4. Radium - Wikipedia

    en.wikipedia.org/wiki/Radium

    Radium is a chemical element; it has symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals. Pure radium is silvery-white, but it readily reacts with nitrogen (rather than oxygen) upon exposure to air, forming a black surface layer of radium nitride (Ra 3 N 2).

  5. Eldorado Mine (Northwest Territories) - Wikipedia

    en.wikipedia.org/wiki/Eldorado_Mine_(Northwest...

    Radium ores were highly valued at the time because the price of radium salts, used in cancer treatment and then monopolized by Belgium, was US$70,000 per gram. The first concentration plant was a big erection at the site by Allis-Chalmers of Canada in 1933–1934, [ 4 ] with a radium refinery built at Port Hope, Ontario .

  6. Atomic radii of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Atomic_radii_of_the...

    Note: All measurements given are in picometers (pm). For more recent data on covalent radii see Covalent radius.Just as atomic units are given in terms of the atomic mass unit (approximately the proton mass), the physically appropriate unit of length here is the Bohr radius, which is the radius of a hydrogen atom.

  7. Radium compounds - Wikipedia

    en.wikipedia.org/wiki/Radium_compounds

    Radium oxide (RaO) has not been characterized well past its existence, despite oxides being common compounds for the other alkaline earth metals. Radium hydroxide (Ra(OH) 2) is the most readily soluble among the alkaline earth hydroxides and is a stronger base than its barium congener, barium hydroxide. [3]

  8. Category:Radium compounds - Wikipedia

    en.wikipedia.org/wiki/Category:Radium_compounds

    Pages in category "Radium compounds" The following 16 pages are in this category, out of 16 total. This list may not reflect recent changes. ...

  9. Isotopes of radium - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_radium

    Radium (88 Ra) has no stable or nearly stable isotopes, and thus a standard atomic weight cannot be given. The longest lived, and most common, isotope of radium is 226 Ra with a half-life of 1600 years. 226 Ra occurs in the decay chain of 238 U (often referred to as the radium series). Radium has 34 known isotopes from 201 Ra to 234 Ra.