in discussion Elements Wiki Forum! / Class Information » Introduce Yourself
ummm… i could have went to spanish 2 last yr. i just didn't want to and i hated it so i went to german..
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in discussion Elements Wiki Forum! / Class Information » Introduce Yourself
in discussion Elements Wiki Forum! / Class Information » Introduce Yourself
well it was real smart of you to take Spanish 1 for two years and now take German. That's three years of a foreign language youd already have under your belt. but no… don't take advice from a smart person
in discussion Elements Wiki Forum! / Class Information » Introduce Yourself
Hey bay-bay
in discussion Elements Wiki Forum! / Class Information » Introduce Yourself
hey kiddo how's it going…
in discussion Elements Wiki Forum! / Class Information » Introduce Yourself
if u haven't noticed i left that class.. so please talk to me in german if you would like to feel smart and talk in another language…
: }
in discussion Elements Wiki Forum! / Class Information » Introduce Yourself
hmmmmmm….hola? De Donde Esta El Bano?
in discussion Elements Wiki Forum! / Class Information » Introduce Yourself
idk what can u say???
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Helium
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I guess im stuck with Phosphorus…
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++propreties++
Sodium
Na
Atomic Number: 11
Atomic Weight: 22.990
Melting Point: 370.87
Boiling Point: 1156
Electronegativity: 0.96
Sodium (IPA: /ˈsəʊdiəm/) is a chemical element which has the symbol Na (Latin: natrium), atomic number 11, atomic mass 22.9898 g/mol, common oxidation number +1. Sodium is a soft, silvery white, highly reactive element and is a member of the alkali metals within "group 1" (formerly known as ‘group IA’). It has only one stable isotope, 23Na. Sodium was first isolated by Sir Humphry Davy in 1807 by passing an electric current through molten sodium hydroxide. Sodium quickly oxidizes in air and is violently reactive with water, so it must be stored in an inert medium, such as kerosene. Sodium is present in great quantities in the earth's oceans as sodium chloride. It is also a component of many minerals, and it is an essential element for animal life. As such, it is classified as a “dietary inorganic macro-mineral.”
When sodium or its compounds are introduced into a flame it will contribute a bright yellow.
In chemistry, most sodium compounds are considered soluble but nature provides examples of many insoluble sodium compounds such as the feldspars. There are other insoluble sodium salts such as sodium bismuthate NaBiO3, sodium octamolybdate Na2Mo8O25• 4H2O, sodium thioplatinate Na4Pt3S6, sodium uranate Na2UO4. Sodium meta-antimonate's 2NaSbO3•7H2O solubility is 0.3g/L as is the pyro form Na2H2Sb2O7• H2O of this salt. Sodium metaphosphate NaPO3 has a soluble and an insoluble form.[1]
When sodium or its compounds are introduced into a flame it will contribute a bright yellow.
In chemistry, most sodium compounds are considered soluble but nature provides examples of many insoluble sodium compounds such as the feldspars. There are other insoluble sodium salts such as sodium bismuthate NaBiO3, sodium octamolybdate Na2Mo8O25• 4H2O, sodium thioplatinate Na4Pt3S6, sodium uranate Na2UO4. Sodium meta-antimonate's 2NaSbO3•7H2O solubility is 0.3g/L as is the pyro form Na2H2Sb2O7• H2O of this salt. Sodium metaphosphate NaPO3 has a soluble and an insoluble form.[1]
When sodium or its compounds are introduced into a flame it will contribute a bright yellow.
In chemistry, most sodium compounds are considered soluble but nature provides examples of many insoluble sodium compounds such as the feldspars. There are other insoluble sodium salts such as sodium bismuthate NaBiO3, sodium octamolybdate Na2Mo8O25• 4H2O, sodium thioplatinate Na4Pt3S6, sodium uranate Na2UO4. Sodium meta-antimonate's 2NaSbO3•7H2O solubility is 0.3g/L as is the pyro form Na2H2Sb2O7• H2O of this salt. Sodium metaphosphate NaPO3 has a soluble and an insoluble form.[1]
Sodium (the English word for which is soda) has long been recognized in compounds, but was not isolated until 1807 by Sir Humphry Davy through the electrolysis of caustic soda. In medieval Europe a compound of sodium with the Latin name of sodanum was used as a headache remedy.
Sodium's chemical abbreviation Na was first published by Jöns Jakob Berzelius in his system of atomic symbols (Thomas Thomson's Annals of Philosophy[2]) and is a contraction of the element's new Latin name natrium which refers to natron, a natural mineral salt whose primary ingredient is hydrated sodium carbonate and which historically had several important industrial and household uses later eclipsed by soda ash, baking soda and other sodium compounds.
Sodium imparts an intense yellow color to flames. As early as 1860, Kirchhoff and Bunsen noted the high sensitivity that a flame test for sodium could give. They state in Annalen der Physik und der Chemie in the paper "Chemical Analysis by Observation of Spectra":
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carbon
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mag.
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silicon
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sodium
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Aluminum
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neon
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lithium
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Florine
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sulfur
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aluminum
