Sodium is a soft, silvery-white, very reactive metal. Salt is one alkali metal, being in team 1 of the periodic table, because it has a single electron in its external shell that it conveniently donates, producing a positively fee atom—the Na+ cation.

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Metallic salt is used greatly for the production of sodium borohydride, sodium azide, indigo, and also triphenylphosphine. Employed only in rather devoted applications, only around 100,000 tonnes of metallic sodium are created annually. Sodium is now developed commercially with the electrolysis of molten salt chloride.


Protons and Neutrons in Sodium

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Sodium is a chemical facet with atom number 11 which way there room 11 protons in that nucleus. Total number of protons in the cell nucleus is called the atomic number of the atom and is provided the symbol Z. The complete electrical fee of the cell nucleus is therefore +Ze, wherein e (elementary charge) equals to 1,602 x 10-19 coulombs.

The complete number of neutrons in the nucleus of one atom is called the neutron number of the atom and also is provided the symbol N. Neutron number plus atomic number equals atom mass number: N+Z=A. The difference in between the ghost number and the atom number is recognized as the neutron excess: D = N – Z = A – 2Z.

For steady elements, there is usually a variety of steady isotopes. Isotopes are nuclides that have the very same atomic number and also are because of this the exact same element, yet differ in the number of neutrons. Mass numbers of usual isotopes of Sodium are 23. 

Main isotope of Sodium

Its just stable isotope is 23Na. 2 radioactive, cosmogenic isotopes room the byproduct that cosmic beam spallation: 22Na has actually a half-life that 2.6 years and also 24Na, a half-life that 15 hours; all other isotopes have actually a half-life of less than one minute.

Sodium-23 is written of 11 protons, 12 neutrons, and 11 electrons. Acute ghost radiation exposure (e.g., from a atom criticality accident) converts few of the steady 23Na in human being blood plasma come 24Na. By measure the concentration that this isotope, the spirit radiation dosage come the victim deserve to be computed.

Sodium-22 is written of 11 protons, 11 neutrons, and 11 electrons. Odium-22 is a radioactive isotope that sodium, experience positron emissions to 22Ne through a half-life the 2.605 years. That is likewise commonly used as a positron source in positron annihilation spectroscopy.

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Sodium-24 is written of 11 protons, 12 neutrons, and 11 electrons. Sodium-24 is among the most crucial isotopes. The is radioactive and also created from typical sodium-23 by ghost bombardment. Therefore its activity accounts for many of the reactor coolants task when reactor is at full power.