Sodium Atomic Number

Posted on  by admin

Its easy to know how many protons, neutrons and electrons are in sodium by reading the periodic table. It has an atomic number of 11, so it has 11 protons. It has an atomic weight of 23, so it has 12 neutrons (23-11=12) and each element is in a natural state so it will be a neutral atom, so it will have 11 electrons to neutralize the 11 protons. The atomic number of Sodium is 11 The total number of electrons is 11 in the sodium atom. To find out the atomic number of sodium, we can use the periodic table. With the help of the periodic table, we can easily see that the atomic number of sodium is 11. As its atomic number is 11, it has a total of 11 protons and for neutral sodium, the number of protons is always equal to the number of electrons i.e. 11 electrons in the nucleus. Sodium (atomic number 11, symbol Na) is a metal and a chemical element that was discovered in 1807 by the Cornish inventor and chemist Humphry Davy. It occurs in sodium salts and minerals, including rock salt, sodalite, and feldspars.

Sodium is a soft, bright, silvery metal which floats on water.


Atomic Number:11Atomic Radius:227 pm (Van der Waals)
Atomic Symbol:NaMelting Point:97.8 °C
Atomic Weight:22.99 Boiling Point:883 °C
Electron Configuration:[Ne]3s1Oxidation States:1



From the English word, soda; Medieval Latin, sodanum: a headache remedy. Long recognized in compounds, sodium was first isolated by Davy in 1807 by electrolysis of caustic soda.



Atom Of Sodium

Sodium is present in fair abundance in the sun and stars. The D lines of sodium are among the most prominent in the solar spectrum. Sodium is the fourth most abundant element on earth, comprising about 2.6% of the earth's crust; it is the most abundant of the alkali group of metals.


It is now obtained commercially by the electrolysis of absolutely dry fused sodium chloride. This method is much cheaper than that of electrolyzing sodium hydroxide, as was used several years ago.


Sodium atomic number and symbolSodium Atomic Number

The most common compound is sodium chloride (table salt), but it occurs in many other minerals, such as soda niter, cryolite, amphibole, zeolite, etc.


Sodium, like every reactive element, is never found free in nature. Sodium is a soft, bright, silvery metal which floats on water. Decomposition in water results in the evolution of hydrogen and the formation of the hydroxide. It may or may not ignite spontaneously on water, depending on the amount of oxide and metal exposed to the water. It normally does not ignite in air at temperatures below 115°C.


Metallic sodium is vital in the manufacture of esters and in the preparation of organic compounds. The metal may be used to improve the structure of certain alloys, descale metal, and purify molten metals.

An alloy of sodium with potassium, NaK, is an important heat transfer agent.


Sodium compounds are important to the paper, glass, soap, textile, petroleum, chemical, and metal industries. Soap is generally a sodium salt of certain fatty acids. The importance of common salt to animal nutrition has been recognized since prehistoric times.

Among the many compounds that are of the greatest industrial importance are common salt (NaCl), soda ash (Na2CO3), baking soda (NaHCO3), caustic soda (NaOH), Chile saltpeter (NaNO3), di- and tri-sodium phosphates, sodium thiosulfate (hypo, Na2S2O3 • 5H2O), and borax (Na2B4O7 • 10H2O).

Sodium Atomic Number And Symbol


Thirteen isotopes of sodium are recognized.

Sodium Atomic Number Is 11


Sodium Group Number

Sodium metal should be handled with great care. It cannot be maintained in an inert atmosphere and contact with water and other substances with which sodium reacts should be avoided.