The fraction atomic number 56 has some(prenominal) neo hires and has an impact on the world today. It is used in many things that we see and use everyday and the world would be changed without it in our lives. The constituent provided however does not have many uses, but when combine with other elements it becomes quite useful. Located in the alkaline earthly concern metal group, barium has an atomic number of 56 and has an atomic mass of 137.327. The mass is do up of 56 protons and 81 neutrons. There are 6 energy levels of electrons that total 56 and have the S, P, and D orbitals. The electron configuration of Barium is 1s2 2s2p6 3s2p6d10 4s2p6d10 5s2p6 6s2 and is a metallic element that is a soft powder and is argent white like pull up stakes when pure. It also oxidizes very easy and it can be decomposed with weewee or alcohol. The density Barium is 3.51 g/cm3 when at 293K and it has a melting point at 998.2 K and boils at 2123 K. Barium was discovered and recogniz ed as an element by Sir Humphrey Davy in 1808 when he also discovered magnesium, calcium, and strontium. The frontmost person who actually discovered it was Steele in 1774 when he sight a bran-new element in Bononian phosphorus and obscure it from the original element, but Davy recognized it as an element.
Humphrey Davy was born on December 17, 1778 in Penzance, Cornwall, England and he received his education in Penzance and in Truro. by and by his father died in 1794 he became an prepare to a surgeon-apothecary and began it call for electrochemistry. Barium got its name from the Greek discussion barys which means sedate because barium is a heavy element. The actually discovery o f the element was in 1774 by Steele and... ! If you want to appropriate a affluent essay, order it on our website:
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