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Im in 8th grade and doing an element project on sodium. The internet basically only had the founder of sodium (Sir Humphry Davy) I need more history than that. PLEASE HELP!!!

thank you

2006-10-26 13:00:42 · 5 answers · asked by Anonymous in Education & Reference Homework Help

5 answers

I guess, you should try yourself and do your assignment - Anyway, I'll give you a hand this time:_))))


Element

Name: Sodium
Atomic Number: 11
Chemical Symbol: Na
Electronic Configuration: [Ne]3s1
Abundance:
Earth: 2.3x104 ppm
Solar System: 1.91x106 (rel. to [H]=1x1012)
Ocurrence
Clausthalite NaCl
Cryolite Na3AlF6
Glauberite Na2Ca(SO4)2
Krohnkite Na2Cu(SO4)2.2H2O
Mirabilite Na2SO4.10H2O
Natron Na2CO3.10H2O
Nepheline (Na,K)AlSiO4
Sodium nitrate NaNO3
Thenardite Na2SO4
Thermonatrite Na2CO3.H2O
Trona Na3H(CO3)2.5H2O
Ulexite with Realga NaCaB5O9.8H2O
Villiaumite NaF


Atomic Mass: 22.989768
Electronegativity:
Pauling: 0.93
Allred: 1.01
Absolute: 2.85 eV
Electron Affinity: 52.9 kJ mol-1
Polarizability: 23.6 Å3
Effective Nuclear Charge:
Slater: 2.2
Clementi: 2.51
Froese Fischer: 3.21
Radius:
Na 1 +: 98 pm
Atomic: 153.7 pm
Van der Waals: 231 pm
Atomic Ionization Energies:
3s : 496 kJ mol-1
2p : 3280 kJ mol-1
2s : 6368 kJ mol-1
1s : 103721 kJ mol-1
Successive Ionization Energies:
Na -› Na + : 495.8 kJ mol-1
Na+1 -› Na+2 : 4562.4 kJ mol-1
Na+2 -› Na+3 : 6912 kJ mol-1
Na+3 -› Na+4 : 9543 kJ mol-1
Na+4 -› Na+5 : 13353 kJ mol-1
Na+5 -› Na+6 : 16610 kJ mol-1
Na+6 -› Na+7 : 20114 kJ mol-1
Na+7 -› Na+8 : 25490 kJ mol-1
Na+8 -› Na+9 : 28933 kJ mol-1
Na+9 -› Na+10 : 141360 kJ mol-1
Common Ions : Na 1 +

Most Common Elementary Substance : Na
Elementary Substance Class : Metal
Origin : Natural
Physical State : Solid
Density [298K] : 971 kg m-3
Price : ~ 6.4 USD
Cristal Lattice : b.c.c.
Melting Point : 371 K
Boiling Point : 1156 K
Electrical Conductivity [298K] : 2.38x107 Ohm-1m-1
Thermal Conductivity [300K] : 141 W m-1K-1
Heat of: Fusion: 2.64 kJ mol-1
Vaporization: 89.04 kJ mol-1
Atomization: 109 kJ mol-1

Metallic sodium was first isolated by Sir Humphrey Davy in 1807 using the electrolysis of solid sodium hydroxide. At that time, sodium and potassium hydroxides were considered elementary substances and were called fixed alkalis. Davy also obtained metallic potassium; in a letter to a friend, he wrote concerning its discovery:

"I decomposed and I recomposed the fixed alkalis and discovered that its bases were two new very inflammable substances similar to metals; but one of them is lighter than the other and very reactive. There are like this two decomposed bodies and two new discovered elementary bodies.

NaCl exists in the ocean water in enormous amounts, occurring equally in great halite deposits, formed by the evaporation of prehistoric seas, or still in dry salted lake-beds. The main deposits can be found in the USA, United Kingdom, France, Germany, China and India. In a lot of regions, like Portugal, the evaporation of the sea water is the used extraction process. The sodium also occurs in several ores, like borax, the cryollite and the Chile nitrate.

Applications - Sodium can reduce many oxides of other metals and it is often used as reducing agent, just as its hidride. It forms alloys with many metals, with special relevance to lead and mercury. From the reaction with several organic substances inumerous derivates result as well as free radicals, many of them important used in organic synthesis, like polymerization reactions.

The more important sodium compounds are the chloride, the hydroxide, the peroxide, the tripolyphosphate, the tetraborate, the silicates, the chlorate, the tiossulfate. The sodium chloride constitutes the main raw material in the obtaining process of the other salts; the sodium hydroxide is used as industrial reagent, in the production of soaps, cellulose, paper, rayon, and many other products; the peroxide is an oxidizer agent used as bleach of textile fibers; the tripolyphosphate is used in water treatment; the tetraborate is used in the production of detergents; the silicates are used in the production of glasses; and the chlorate in the production of explosive; finally, the tiossulfate is used in photography as a developer.

I think , it's enough so far..continue the rest...unless you can't get a good mark for evaluation!

2006-10-26 13:16:50 · answer #1 · answered by Goldista 6 · 0 0

If you're leaving high sodium things off but adding salt then you're defeating the purpose. It's no different. Try seasoning with a low sodium salt or seasoning.

2016-03-28 08:40:13 · answer #2 · answered by ? 4 · 0 0

Sodium is not salt. It is part of the common table salt ,sodium chloride, which is important to animals and plants. It is used to make soap. Sodium hydroxide and fat make soap and glycerine. I had heard that it was named at Christmas time from the nativity, natrium. However, I could not verify this.
There is quite a bit on the internet, try google.
Don't forget the flame test-yellow orange

2006-10-26 14:04:50 · answer #3 · answered by science teacher 7 · 0 0

Try this website, it the URL is hidden run your cursor over the blank space and click on it.

http://search.yahoo.com/bin/search?p=SODIUM

Above here.

2006-10-26 13:10:19 · answer #4 · answered by Anonymous · 0 0

sodium is salt u dumbass

2006-10-26 13:03:13 · answer #5 · answered by joe v 3 · 0 3

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