![]() In a neutral atom, the number of negatively charged electrons is equal to the number of positively charged protons. When one shell fills to its limit, electrons are added to the next shell. In theory, electron shells 6 and 7 can hold more electrons, but in the known elements, 50 is the maximum number of electrons in these shells. Maximum number of electrons in each shell, up to shell 7 Electron Shell Each shell holds an increasing number of electrons, beginning with electron shell 1, which holds a maximum of two electrons (see Table 2.6). Electron shells are labeled with numbers 1 through 7. The electron shell is the region that the electrons travel in (see Fig. Available here Image Courtesy:ġ.”Na (Sodium)”By Dnn87 (CC BY-SA 3.0) via Commons WikimediaĢ.”Halit-Kristalle”By W.J.Pilsak (CC BY-SA 3.Electrons are in constant motion outside of an atom’s nucleus. “Sodium Chloride.” Wikipedia, Wikimedia Foundation, 7 Nov. “Sodium.” Wikipedia, Wikimedia Foundation, 28 Oct. Therefore, the key difference between sodium and sodium chloride is that sodium is a chemical element whereas sodium chloride is a compound containing both sodium and chlorine chemical elements. Apart from that, another important difference between sodium and sodium chloride is that sodium has an explosive reaction with water while sodium chloride dissolves in water without any explosive characteristics. As another important difference between sodium and sodium chloride, sodium is highly reactive when exposed to normal air whereas sodium chloride is unreactive when exposed to air. Hence, the key difference between sodium and sodium chloride is that sodium is a chemical element whereas sodium chloride is a compound containing both sodium and chlorine chemical elements.įurthermore, sodium appears as a silvery-white metal while sodium chloride appears as colourless cubic crystals. Sodium is a chemical element having the symbol Na and atomic number 11 while sodium chloride is a chemical compound having the chemical formula NaCl. What is the Difference Between Sodium and Sodium Chloride? Moreover, this compound is responsible for the salty taste of seawater. It is an ionic compound consisting of sodium cations and chloride anions. In common terms, we name it simply as “salt”. We can name it as a sodium salt because it contains sodium cation. Sodium chloride is a chemical compound having the chemical formula NaCl. Sodium is also useful in synthesizing various other chemicals, organic compounds and for sodium vapour lamps. Sodium is an essential element in living systems to maintain osmotic balance, for nerve impulse transmission etc. When sodium burns in the air, it gives a brilliant yellow flame. This reaction is highly exothermic and thus, explosive. The density of sodium is lower than that of water, so it floats in water, while vigorously reacting. Moreover, as soon as it cuts, the silvery colour disappears due to the oxide layer formation. After all, this metal appears as a silvery-white metal, and it is very soft that, we can simply cut it using a knife. Hence, we can take 23 as the standard atomic weight of sodium. There is only one stable isotope for sodium Na-23. Subsequently, this leads to the formation of ionic compounds. Therefore sodium atoms tend to donate this electron forming Na+ cation and becomes stable. It has one unpaired electron as its valence electron, and it is in the outermost s orbital. Hence we can categorize it as an alkali metal (because all the members in group 1 are named as alkali metals). It is in group 1 of the periodic table of elements. Sodium is a chemical element having the symbol Na and atomic number 11. Side by Side Comparison – Sodium vs Sodium Chloride in Tabular Form Sodium and salt are interchangeably used by people because ultimately, it has the same purpose inside the body. Similarly, people take up sodium in their diet in different forms, and the main sodium source is salt or sodium chloride. Hence, the daily dosage of sodium needed for a healthy body is 2,400 milligrams. The key difference between sodium and sodium chloride is that sodium is a chemical element whereas sodium chloride is a compound containing both sodium and chlorine chemical elements.
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