The Element Barium

What is Barium? Element Properties & Periodic Table Info

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Definition of the Barium Element
A soft, silvery-white alkaline-earth metal, used to deoxidize
Copper and in various alloys. Barium oxidizes in air, reacts vigorously with water to form the hydroxide, liberating Hydrogen. The acid-soluble salts of barium are poisonous. The Atomic Number of this element is 56 and the Element Symbol is Ba

What is Barium? Origin / Meaning of the name Barium
Originates from the Greek word 'barys' meaning heavy. The oxide was at first called barote, by Guyton de Morveau, which was changed by Antoine Lavoisier to baryta, which was modified to "barium".

 

What is Barium? Periodic Table Group and Classification of the Barium Element
Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a solid. Barium
is classified as an "Alkaline Earth Metal" which are located in Group 2 elements of the Periodic Table. An Element classified as an Alkaline Earth Metals are found in the Earths crust, but not in the elemental form as they are so reactive. Instead, they are widely distributed in rock structures. Nearly 75% of all the elements in the Periodic Table are classified as metals which are detailed in the List of Metals above.

Common properties of Alkaline Earth metals
The elements classed as "Alkaline Earth metals" have the following properties in common:

  • Shiny Solids
  • Two electrons in the outer shell
  • Can conduct heat or electricity
  • Can be formed into sheets

What is Barium?
Properties within each individual group are similar, but nevertheless vary within a group. Generally chemical activity decreases as the period increases a non-metal group and increases as the period increases within a metal group. The first element in a group is always an active metal, the last is always an inactive non-metal.

What is Barium? Occurrence of the Barium Element
Barium occurs in nature largely as barytes, or heavy spar (BaSO4), and witherite (BaCO3). Like strontium, it closely resembles
Calcium both in the properties of the metal and in the compounds which it forms.
Extracted from the mineral barite and whiterite
Oxidizes quickly in air

Abundances of the element in different environments
% in Universe 110-6%
% in Sun 110-6%
% in Meteorites 0.00027%
% in Earth's Crust 0.034%
% in Oceans 310-6%
% in Humans 0.00003%

Medical Uses of Barium - Health and Treatments
Interesting information on the Medical Uses of Barium, Health and Treatments. The Barium Test is an x-ray examination using a barium mixture to help locate disorders in the oesophagus, stomach, duodenum, and small and large intestines. Such conditions as a peptic ulcer, cancer tumors, colitis, or enlargement of organs that might be causing pressure on the stomach may be readily identified with the use of barium tests.

Associated Uses of Barium
Sparkplugs
Vacuum tubes
Fireworks
Fluorescent lamps
Paint
Rat poison
Medical Given orally as a barium meal or as an enema (enima) , to increase the contrast of medical X-rays of the digestive system
Barium sulfate, hydroxide octahydrate, nitrate, carbonate

Ba

The Properties of the Barium Element
Symbol of Element : Ba
Atomic Number : 56
Atomic Mass: 137.327 amu
Melting Point: 725.0 C - 998.15 K
Boiling Point: 1140.0 C - 1413.15 K
Number of Protons/Electrons : 56
Number of Neutrons in Barium : 81
Crystal Structure: Cubic
Density @ 293 K: 3.51 g/cm3
Color : Silver

What is Barium? The Properties of the Barium Element
Name of Element : Barium
Symbol of Element : Ba
Atomic Number of Barium : 56
Atomic Mass: 137.327 amu
Melting Point: 725.0 C - 998.15 K
Boiling Point: 1140.0 C - 1413.15 K
Number of Protons/Electrons in Barium : 56
Number of Neutrons in Barium : 81
Crystal Structure: Cubic
Density @ 293 K: 3.51 g/cm3
Color of Barium : Silver

The Discovery of Barium
Barium was discovered by in 1774 by Carl Scheele and extracted by Sir Humphry Davy in 1808.

Carl Wilhelm Scheele
Carl Scheele (9 December 1742 21 May 1786) was a German chemist who made a number of important chemical discoveries before many others but was rarely given the credit for his findings. For instance, although Scheele discovered Oxygen Joseph Priestley published his findings first so was given the credit. Carl Scheele also identified molybdenum, Tungsten, barium, hydrogen and Chlorine before Humphry Davy and other scientists.

Carl Scheele

Carl Scheele (1742 - 1786)

Sir Humphry Davy
Sir Humphry Davy (1778-1829) isolated
Sodium, Lithium, Potassium, barium, strontium, and calcium by means of electrolysis; demonstrated the elementary nature of chlorine; invented the safety lamp; discovered the stupefying effects of nitrous oxide.

Sir Humphry Davy

Sir Humphry Davy (1778 - 1829)

Antoine Lavoisier
Antoine Lavoisier was famous for his care in quantitative experiments, for demonstrating the true nature of combustion, for introducing system into the naming and grouping of chemical substances. Lavoisier was executed in 1794 during the French Revolution.

Antoine Lavoisier

Antoine Lavoisier (1743 - 1794)

Barium as on the Periodic Table
Check out Barium on the Periodic Table which arranges each chemical element according to its atomic number, as based on the Periodic Law, so that chemical elements with similar properties are in the same column. Our Periodic Table is simple to use - just click on the symbol for Barium as on the Periodic Table for additional information and for an instant comparison of the Atomic Weight, Melting Point, Boiling Point and Mass - G/cc with any other element. An invaluable source of facts and information as a Chemistry reference guide.

Other elements classified as Alkaline Earth Metals
The other elements contained in this classification are as follows:

  • Beryllium
  • Magnesium
  • Calcium
  • Strontium
  • Radium

What is Barium - IUPAC and the Modern Standardised Periodic Table
The Standardised Periodic Table in use today was agreed by the International Union of Pure Applied Chemistry, IUPAC, in 1985 and now recognises more periods and elements than Dimitri  Mendeleev knew in his day in his day but still all fitting into his concept of  the "Periodic Table" in which Barium is just one element that can be found.

Learn about what is Barium with these fast facts...
These articles contain facts and information relating to Barium and each of the other elements including the Periodic Symbol,  group, classification, properties and atomic number which is often referred to as the Periodic Table Number. Test your knowledge of chemistry and the Periodic Table by completing the Element Symbols and Atomic Numbers on our Blank Periodic Table. Chemistry students will also find a helpful section on Chemical Formulas.

What is the Element Barium

The Elements are the building blocks of Modern Science & Chemistry
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Periodic Table with Atomic Mass


 

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