Sodium - Wikipedia
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.
Sodium — Wikipédia
Le sodium est depuis longtemps reconnu dans les composés, mais il ne fut pas isolé avant 1807, lorsque Sir Humphry Davy réalisa l'électrolyse de la soude caustique. Pendant le Moyen Âge, un composé du sodium avec le nom latin de sodanum était utilisé pour le …
Sodium | Facts, Uses, & Properties | Britannica
2024年11月16日 · The sodium content of the sea is approximately 1.05 percent, corresponding to a concentration of approximately 3 percent of sodium halides. Sodium has been identified in both the atomic and ionic forms in the spectra of stars, including the Sun, and the interstellar medium.
Sodium - Simple English Wikipedia, the free encyclopedia
Sodium pellets in a container. 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. Because of this, all sodium in nature (mainly found in seawater) is of the isotope 11 Na 23. The atomic mass of sodium is ...
Sodium in biology - Wikipedia
Sodium is the primary cation (positively charged ion) in extracellular fluids in animals and humans. These fluids, such as blood plasma and extracellular fluids in other tissues, bathe cells and carry out transport functions for nutrients and wastes.
Sodium - Chemical Properties, Reactions, Uses | Britannica
Sodium - Chemical Properties, Reactions, Uses: Generally, elemental sodium is more reactive than lithium, and it reacts with water to form a strong base, sodium hydroxide (NaOH). Its chemistry is well explored.
Sodium compounds - Wikipedia
The most important sodium compounds are table salt (NaCl), soda ash (Na 2 CO 3), baking soda (NaHCO 3), caustic soda (NaOH), sodium nitrate (NaNO 3), di- and tri-sodium phosphates, sodium thiosulfate (Na 2 S 2 O 3 ·5H 2 O), and borax (Na 2 B 4 O 7 ·10H 2 O). [7] In compounds, sodium is usually ionically bonded to water and anions and is ...
SODIUM - Encyclopædia Universalis
Le sodium est le plus courant des éléments alcalins. Son nom dérive de l'arabe soda , qui désignait le mélange de carbonates alcalins extrait des cendres de végétaux. Le symbole Na vient de son appellation allemande Natrium , qui dérive de « natron », le carbonate de sodium naturel d'Égypte.
Sodium Element (Na or Atomic Number 11) - ThoughtCo
2019年7月3日 · Sodium is the 6th most abundant element in the Earth's crust, making up approximately 2.6% of the earth, air, and oceans. Sodium is not found free in nature, but sodium compounds are common. The most common compound is sodium chloride or salt. Sodium occurs in many minerals, such as cryolite, soda niter, zeolite, amphibole, and sodalite.
Sodium - Element information, properties and uses | Periodic Table
Element Sodium (Na), Group 1, Atomic Number 11, s-block, Mass 22.990. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Jump to main content