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Sodium is a chemical element; it has symbol Na (from Neo-Latin natrium) and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable isotope is 23 Na. The free metal does not occur in nature and must be prepared from compounds.
- Natrium (Disambiguation)
Natrium is the Latin name of sodium. Natrium may also refer...
- Abundance of Elements in Earth's Crust
Abundance of chemical elements in Earth's (continental)...
- Isotopes of Sodium
There are 20 isotopes of sodium (11 Na), ranging from 17 Na...
- Flame Test
A flame test is relatively quick test for the presence of...
- Standard Atomic Weight
Example: copper in terrestrial sources. Two isotopes are...
- Engelsk
Sodium hydroxide, also known as lye and caustic soda, is an...
- Sodium chloride
Sodium chloride / ˌsoʊdiəm ˈklɔːraɪd /, [8] commonly known...
- Sodium in biology
Sodium and Water Balance. Sodium is the primary cation...
- Natrium (Disambiguation)
- Properties
- Discovery and Name Origins
- Use as Element
- Occurrence and Production
- Use in Organisms
- Related Pages
Sodium is a light-weight, silver-colored metal. Sodium is soft, and because of that, someone could easily cut it with a knife. When someone cuts it, the exposed part will become white over time. It reacts with air to form sodium hydroxide and sodium carbonate. Sodium is a little less dense than water; when someone puts it in water, it floats and re...
Sodium was discovered by Sir Humphrey Davy, an English scientist, in 1807. He created it by electrolyzing sodium hydroxide. Davy named the element after soda, a name for sodium hydroxide or sodium carbonate.
Scientists can use it in the creation of organic compounds. People also use it in orange streetlights and lamps that emit ultravioletlight.
Sodium does not occur as an element in nature, because it is not stable enough. It exists only in chemical compounds. Sodium ions are found in the ocean and in the Earth's crust. Sodium is normally made by electrolysis of sodium chloride, which is mined from the Earth's crust.
The human body needs sodium ions, taken in the form of sodium chloride, to live, but too much of it can cause health problems. Many organisms in the ocean depend on the concentrationof sodium ions in water to survive.
- silvery white metallic
- 11
Sodium is a chemical element; it has symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable isotope is 23Na. The free metal does not occur in nature and must be prepared from compounds.
chemical element with symbol Na and atomic number 11 / From Wikipedia, the free encyclopedia. Sodium is a chemical element with an atomic number of 11. Its symbol is Na (from its Latin name natrium ). It is an alkali metal. Although sodium has many isotopes, most decay in a short time.
