Wednesday, December 1, 2010

Melamine

1.) Melamine:
    Cyanurotriamide
    Cyanurotriamine
    Cyanuramide

2.) chemical formula: C3H6N6
       molar mass of the molecule: 126.12 g/mol

3.)

4.) melting point: 345 °C, 618 K, 653 °F (decomposition[1])
      boiling point: sublimes

5.) Melamine can be very harmful, if you swallow, inhail or absorb it can cause cancer or reproductive damage. Can be irratating to eyes, skin. and respiratory. It looks like a white solid.

6.) The uses of melamine are in formica, melamine foam, and a polymeric cleaning product. It enters the fabrication of melamine poly-sulfonate used as superplasticizer for making high-resistance concrete. It is also a fertilizer for crops had been envisaged during the '50s and '60s because of its high nitrogen content. Also, use as non-protein nitrogen (NPN) for cattle was described in a 1958 patent.

7.)                                       

8.) Melamine is combined with cyanuric acid and related compounds to form melamine cyanurate and related crystal structure which have been implicated as contaminants or biomarkers.

9.) Melamine is reported to have an oral LD50 of 3248 mg/kg based on rat data. The reported dermal LD50 is >1000 mg/kg for rabbits. For rats and mice, the reported LD50 for melamine cyanurate was 4.1 g/kg (given inside the stomach) and 3.5 g/kg (via inhalation), compared to 6.0 and 4.3 g/kg for melamine
and 7.7 and 3.4 g/kg for cyanuric acid, respectively. Crystals formed in the kidneys when melamine combined with cyanuric acid, don't dissolve easily but instead go away slowly, if at all, so there is the potential for chronic toxicity.

10.) Melamine- "I'm glad to see a smile on your face when I'm able to get rid of your rodent problem and come useful for making silverwear that you can use, I'm just sorry that I put a frown on your face when I poisioning you when I'm released in the air."

Thursday, October 7, 2010

Radium is Element # 88

1.) My Name The origin of the name Radium comes from the Latin word "radius" meaning "ray". It was discovered in France in 1898 by Pierre and Marie Curie. It's known as:
- In Italy- Radio
- In France: Radium
- In England: Radium
2.) My Image
3.) My Nucleus

4.) My Electrons A radium mass has 88 electrons in 7 energy levels. 86 of a radium atom's electrons are on energy levels one through 6. The last 2 electrons are on the 7th level energy. The electrons on the highest, or outermost, energy level called valence electrons and lost during chemical reaction. When one is lost a radium ion with a charge of +2 is formed because the ion has 2 more protons then it has electrons.

5.) My Atom Not all radium atoms have a weight of 226 amu. Some weigh as little ass 222 amu, and others as much as 228 amu.All radium atoms have 88 protons or else they would have different elements, the difference in the weight is caused by a different number of neutrons.

6.) My Properties Is a silvery, lustrous, soft, intensely radioactive. It readily oxidizes on exposure to air, turning from almost pure white to black. It is luminescent, corrodes in water to form radium hydroxine. The heaviest member of the alkiline- earth group it is the most volatile.

7.) My Home (body, Planet, Universe)

8.) My Compounds Radium comes from halogens, oxygen, hydrogen and other compounds. For each compound, a formal oxidation number of radium is given but the usefulness of this number is limited p-block elements in particular.

halogenhydrogen
9.) My Story Was fomerly used in self- luminious paints for watches, nuclear panels, aircraft switches, clocks, and instrument dials. In the mid-1920s, a lawsuit was filed by 5 dying "Radium Girls" dial painters who had painted radium-based luminious paints on the dials of switches and clocks. Used in medicine to produce radon gas, cancer treatment. at the beginning of the 19th century radium was used as addictive in products like toothpaste, hair cream, and even food items.

10.) My Job(s) Is treated as calcium by the body, and deposited in the bones, where radioactivity degrades marrow and can mutate bone cells

11.) ???

12.) My References


Why Big Fr and Hungry F

1. Why Francium is the biggest ekement with the lowest IE and EN?
  Since Fransium has seven shells that make the valance electrons loose attraction from the nucleus that makes it very easy for Fr to lose its valence electrons.

2. Why Helium is the smallest element with the highest IE?
  It only has one shell meaning that its electrons are close to its nucleus and the attraction is strong and only has two electons.

3. Why Noble Gases don't have EN values?
  Noble gases don't have EN because its the most nonreactive group in the periodic table and don't jave trendency to gain electron.

4. Why Flourine has the highest EN?
  Flourine is only needs one electrons to gain for it to have its full shells.

Friday, September 3, 2010

hey pe0ple!! da name is kelly!!!!!! i'm 16.. yes i am 0ld. dnt rub it in. im latina. and pr0ud 0f it.. ugghhh.. i g0 ta thz sch00l named mills. awes0me huh. pr0bably havent heard 0f it but if y0u have.. well yea tats my sch00l.. anyways. i am friendly.. and random.. and at da moment bored. im n0t sure wat else y0u wanna kn0 buuuuut...ummm.. im supp0sed ta be writin a paragraph fa class n i cnt really think 0f wat else 2 but.. y0u can see tat my c0l0r is red th0.. jus in case y0u havent n0ticed.. i l0ve ta have fun by jus bein wit friends n g0in 0ut. parties. m0vies. chillin at da park. n i l0ve my family n jus hangin 0ut wit em. n i dnt really have dreams.. but i d0 have things i want 2 d0.. but until then im jus stayin at sch00l n seein wat c0mes nex day after day