Periodic Table and Sodium

Topics: Periodic table, Chemical element, Sodium Pages: 2 (725 words) Published: January 9, 2011
Sodium, one of many elements in the periodic table is being used in everyday life, it is also an essential element within your body. It is just another element, but one of the differences is that this element is something that most people consume every day. Sodium has played an important role in everyday life because of its uses in medicine, industry, and agriculture(Shriver).

Sodium was discovered in 1807 by a man named Sir Humphrey Davy. He was well known for his discoveries of most alkali metals and Alkaline Earth Metals, such as potassium, magnesium, and many more(Chemicool Periodic Table).Sodium is from the alkali metal family. There are five more chemical elements from the same exact family. The period number of sodium is three. Na is the chemical symbol of sodium on the periodic table. Na is the symbol because it comes from the Latin word "Natrium", which means sodium (Periodic). It's atomic number is eleven and it has the atomic mass of 22.98977, which makes it the fifth largest in its family(Web Elements).

Each and every element has difference has a difference between each of them. When Sodium is not exposed to air it is silvery- white in color and is bright and shiny. When it is kept in open air, it becomes dull and gray because of the reaction with the oxygen present in the atmosphere. At room temperature, sodium is found in the form of a solid which is very soft to touch. Due to its softness, you can easily cut it with a table knife(Mukherjee). It's melting point is 97.72 degrees Celsius and 207.9 degrees Fahrenheit. The freezing point is the same as the melting point but the boiling point is 883 degrees Celsius and 1621 degrees Fahrenheit(Web Elements). When a fresh piece of sodium comes in contact with air, it forms sodium oxide and this oxide forms a white coating and protects the metal from any other reaction. The reaction with sodium and water can be very dangerous. Reaction of sodium with water results in sodium hydroxide and hydrogen gas....
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