Sodium is a chemical element having the atomic number 11 and chemical symbol “Na”. In the periodic table, the elements are listed in order of increasing atomic number Z. Electron configuration of Sodium is [Ne] 3s1. In other words, it can be expressed as the neutral atom’s likelihood of gaining an electron. X + e– → X– + energy        Affinity = – ∆H. Chemical symbol for Sodium is Na. Sodium-23 atom is the stable isotope of sodium with relative atomic mass 22.989770, 100 atom percent natural abundance and nuclear spin 3/2. Atomic Number: 11 Atomic Radius: 227 pm (Van der Waals) Atomic Symbol: Na Melting Point: 97.8 C Atomic Weight: 22.99 Boiling Point: 883 C Electron Configuration: [Ne]3s 1 Oxidation States: 1 History … It’s a soft metal, reactive and with a low melting point, with a relative density of 0,97 at 20ºC (68ºF). Sodium is not found in a free state in nature due … The number of electrons in each element’s electron shells, particularly the outermost valence shell, is the primary factor in determining its chemical bonding behavior. Phase at room temperature: Solid 6. Sodium boiling point is 892 °C. Since sodium can ignite on contact with water, it must be stored in a moisture free environment. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. SODIUM Sodium is a mineral element with the atomic number 11. Sodium is a chemical element with atomic number 11 which means there are 11 protons in its nucleus. Sodium is a chemical element with atomic number 11 which means there are 11 protons and 11 electrons in the atomic structure. Other articles where Sodium-22 is discussed: sodium: Nuclear properties: Of the radioactive artificial isotopes, sodium-22 (2.6-year half-life, the longest half-life of a sodium isotope) is used as a … The number of electrons in an electrically-neutral atom is the same as the number of protons in the nucleus. The chemical symbol for Sodium is Na . Chemical symbol for Sodium is Na. The atomic mass or relative isotopic mass refers to the mass of a single particle, and therefore is tied to a certain specific isotope of an element. It must be noted, atoms lack a well-defined outer boundary. It has 11 positive charges and 11 negative charges. sodium: A soft, light, extremely malleable silver-white element that is an alkali metal, reacts violently with water, is naturally abundant in combined forms, especially in common salt, and is used in … The Cookies Statement is part of our Privacy Policy. Total number of protons in the nucleus is called the atomic number of the atom and is … Sodium occurs in many minerals, such as cryolite, soda niter, zeolite, amphibole, and sodalite. Note that, ionization energies measure the tendency of a neutral atom to resist the loss of electrons. Each electron is influenced by the electric fields produced by the positive nuclear charge and the other (Z – 1) negative electrons in the atom. Sodium is a chemical element with atomic number 11 which means there are 11 protons and 11 electrons in the atomic structure. It is an intensive property, which is mathematically defined as mass divided by volume: Electron affinity of Sodium is 52.8 kJ/mol. The atomic number of sodium is 11. 23 Na is the only stable (and the only primordial) isotope. Our Website follows all legal requirements to protect your privacy. The most common compound is sodium chloride or salt. Atomic number (number of protons in the nucleus): 11 2. Anyone can be able to come here, learn the basics of materials science, material properties and to compare these properties. Predict the isotope you would find in the greatest abundance for sodium. Since the number of electrons and their arrangement are responsible for the chemical behavior of atoms, the atomic number identifies the various chemical elements. Boiling point: 1,621 F (883 C) 8. Predict the two most … Although sodium is the sixth most abundant element on earth and comprises about 2.6% of the earth's crust, it is a very reactive element and is never found free in nature. The atomic radius of Sodium atom is 166pm (covalent radius). It has eleven electrons around its nucleus. Sodium. Sodium definition, a soft, silver-white, metallic element that oxidizes rapidly in moist air, occurring in nature only in the combined state, and used in the synthesis of sodium peroxide, sodium cyanide, and … It explains how we use cookies (and other locally stored data technologies), how third-party cookies are used on our Website, and how you can manage your cookie options. Sodium (symbol Na, from the Latin name natrium) is the chemical element number 11 in the periodic table of elements. 1) You may use almost everything for non-commercial and educational use. At room temperature Sodium is soft, silvery-white metal which can be easily cut with a knife. For this purposes, a dimensionless quantity the Pauling scale, symbol χ, is the most commonly used. Chemical element, symbol: Na, atomic number: 11 and atomic weight 22,9898. Number of protons in Sodium is 11. 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