1. Why Francium is the biggest element with the lowest IE and EN Francium has the lowest electronegativity since it has seven electron shells and its so big that the valence electron is far from the nucleus. The far away valence electron makes it easier for it to be removed. It is also the reason that it has low ionization energy.
2. Why Helium is the smallest element with the highest IE
Helium has the highest ionization energy because it has one valence shell and the protons of helium are close to the electrons. The two protons bring the electron closer.
3. Why Noble Gases don't have EN values
Noble Gases do not have any electronegativity values because it already has a full valence shell, or eight valence electrons. Since it has a full valence shell it does not attract any more electrons.
4. Why Fluorine has the highest EN
Fluorine has seven valence electrons and it needs one more. Since it is a small element its excellent at gaining or attracting electrons from other atoms.
Thursday, October 7, 2010
Tuesday, September 7, 2010
Elemental Blog Post - Platinum Element 78
1. Platinum's name in 3 different languages is
French: Platine
Spanish: Platino
German: Platin
It was derived from the Spanish word "platina" meaning silver.
2.
3. It has 78 protons and the amount of neutrons vary depending on the isotope. The naturally occurring isotopes are
Isotope: Natural abundance (atom percentage)
Platinum-190 0.014 (1)
Platinum-192 0.782 (7)
Platinum-194 32.967 (99)
Platinum-195 33.832 (10)
Platinum-196 25.242 (41)
Platinum-198 7.163 (55)
The average atomic weight is 195.084
4. It has 6 shells of electrons, and there are 78 electrons in about 117 neutrons.
5. Platinum's atomic radius is 2.775 x 10-10 meters.
6. Platinum's properties in pure elemental form can be used as a precious metal, an item used to make jewelry. In other cases it can be used as electrodes in the laboratory. It can also be a alloying agent for various metal products, including fine wires, noncorrosive laboratory containers, medical instruments, dental prostheses, electrical contacts, and thermocouples.
7. There is no abundance in your body since it is highly toxic. Its abundance in the earth's crust is 37 parts per billion by weight. In our universe, its 5 parts per billion.
8. Platinum oxide Platinum Tetrachloride
9. Platinum was "rediscovered" in 1735 by Ulloa in South America. Before that it was used by pre-Columbian Indians.
10. In human society, its jobs can be making jewelry, used in dentistry, and as wires and vessels in laboratory use.
11. A interesting fact about Platinum is that its more expensive than gold, which limits its use.
12. http://webelements.com/platinum/uses.html
http://www.chemicalelements.com/elements/pt.html
http://en.wikipedia.org/wiki/Platinum
French: Platine
Spanish: Platino
German: Platin
It was derived from the Spanish word "platina" meaning silver.
2.
3. It has 78 protons and the amount of neutrons vary depending on the isotope. The naturally occurring isotopes are
Isotope: Natural abundance (atom percentage)
Platinum-190 0.014 (1)
Platinum-192 0.782 (7)
Platinum-194 32.967 (99)
Platinum-195 33.832 (10)
Platinum-196 25.242 (41)
Platinum-198 7.163 (55)
The average atomic weight is 195.084
4. It has 6 shells of electrons, and there are 78 electrons in about 117 neutrons.
5. Platinum's atomic radius is 2.775 x 10-10 meters.
6. Platinum's properties in pure elemental form can be used as a precious metal, an item used to make jewelry. In other cases it can be used as electrodes in the laboratory. It can also be a alloying agent for various metal products, including fine wires, noncorrosive laboratory containers, medical instruments, dental prostheses, electrical contacts, and thermocouples.
7. There is no abundance in your body since it is highly toxic. Its abundance in the earth's crust is 37 parts per billion by weight. In our universe, its 5 parts per billion.
8. Platinum oxide Platinum Tetrachloride
9. Platinum was "rediscovered" in 1735 by Ulloa in South America. Before that it was used by pre-Columbian Indians.
10. In human society, its jobs can be making jewelry, used in dentistry, and as wires and vessels in laboratory use.
11. A interesting fact about Platinum is that its more expensive than gold, which limits its use.
12. http://webelements.com/platinum/uses.html
http://www.chemicalelements.com/elements/pt.html
http://en.wikipedia.org/wiki/Platinum
Friday, August 27, 2010
What I Love
Ok ummm, im not in love with much stuff so i'll try and list out a few. I love anime, food, a lil bit of skewl but not too much, hangin with friends, shopping, movies, music, and games. :) I'll list out my fav artists and junk.
Anime: Bleach, Inuyasha, Naruto Shippuden, Elfen Lied
Shoppin: Clothes and games
Music: Ciara, Britney Spears, Ke$ha, Usher, Black Eyed Peas, Linkin Park, Evanescence, Taking Back Sunday
Anime: Bleach, Inuyasha, Naruto Shippuden, Elfen Lied
Shoppin: Clothes and games
Music: Ciara, Britney Spears, Ke$ha, Usher, Black Eyed Peas, Linkin Park, Evanescence, Taking Back Sunday
Plans for the Future
What i hope to accomplish in life is try and make my plans for the future a reality. Currently, I am aiming to be a doctor and a 2nd job which i have not decided yet. I gotta do 1 more post for homework, x_x. I am currently a sophmore in high school. Anyway c u all in my next post :)
Y Helo Thar
Yo welcome to Derek's blogs, this is the 1st time i have done a blog in so long. Check this blog spot often for updates in my life and stuff. I am currently in chemistry class in high school, its soo fun rite now.
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