1. Why Francium is the biggest element with the lowest IE and EN?
It has 7 shells so it's the biggest electron. It has the lowest IE because it does not take that much energy to pull away the electrons. It's not great at attracting electrons and loses it's electrons easily. Francium has lowest EN because it does not need anymore electrons since it's too big and can't hold on to valence electrons.
2. Why Helium is the smallest element with the highest IE.
Helium is the smallest element because as you go horizontally, the size decreases. It also only has one shell. Helium holds its electrons tight so it has high IE.
3. Why Noble Gases don't have EN values?
Noble Gases don't have EN values because the electron shell is already full so it won't gain or lose electrons.
4. Why Fluorine has the highest EN?
Fluorine has the highest EN because it is easy for it to gain electrons. Fluorine is a halogen, it has 7 valence electrons and it wants to gain 1 more electron to fill in it's shell. Fluorine is also the smallest atom and has the greatest attraction to nearby electrons.
Thursday, October 7, 2010
Friday, September 3, 2010
Silver (Hg)
1. Latin: Argentum, French: Argent, Portuguese: Prata.
Silver got its name from Anglo-Saxon word seolfe meaning silver.
2. This is how silver looks like as a pure element.
3. Silver have 47 protons and 47 electrons.
Below is a table of the isotope, atomic mass, and natural abundance.
The average atomic mass is 107.8682 amu.
9. "Slag dumps in Asia Minor and on islands in the Aegean Sea indicate that man learned to separate silver
from lead as early as 3000 B.C."
10. Silver is used in jewelery, tableware and utensils, photography, dental alloys, solder and brazing alloys.
11. You contain 0g of SILVER!!!
12. CLICK HERE =>>> www.webelements.com
Silver got its name from Anglo-Saxon word seolfe meaning silver.
2. This is how silver looks like as a pure element.
3. Silver have 47 protons and 47 electrons.
Below is a table of the isotope, atomic mass, and natural abundance.
The average atomic mass is 107.8682 amu.
109Ag 108.904756 (4) 48.161 (7) |
4. There are 47 electrons in a neutral atom of silver.
It has five shells of electrons.
5. Atomic radius of silver in meters is: 144 picometers = 1.44 × 10-10 meters.
6. The properties of silver in its pure elemental form: soft, white metal with a shiny surface. It is malleable ,
conducts heat and reflect light.
conducts heat and reflect light.
7. Below is a table of the abundance in silver in grams (g).
| Location | ppb by weight | ppb by atoms |
|---|---|---|
| Universe | 0.6 | 0.007 |
| Sun | 1 | 0.01 |
| Meteorite (carbonaceous) | 140 | 20 |
| Crustal rocks | 80 | 20 |
| Sea water | 0.1 | 0.0057 |
| Stream | 0.3 | 0.003 |
| Human | no data | no data |
8. Compounds that silver form is: Silver fluoride: AgF, Silver chloride: AgCl, and Silver bromide: AgBr.
9. "Slag dumps in Asia Minor and on islands in the Aegean Sea indicate that man learned to separate silver
from lead as early as 3000 B.C."
10. Silver is used in jewelery, tableware and utensils, photography, dental alloys, solder and brazing alloys.
11. You contain 0g of SILVER!!!
12. CLICK HERE =>>> www.webelements.com
Friday, August 27, 2010
Welcome to My Blog
Welcome to my Chemistry Blog! This is where I'll post all my thoughts. It'll be mostly related to Chemistry. I don't think that I'll post much on here because I don't like blogging. This is all new to me. I know I'm rambling on and on and not knowing what to write in this big white box. Buh-Bye! =)
I Love...
To eat, sleep, swim, play the piano, and shopping. The best thing I like to do is hang out with friends. I'm absolutely addicted to puppies. Especially POMERANIAN!
I Dream...
I would like go to a UC and then graduate with either a master's degree or Ph D. Then I would like to become an Optometrist. Of course I'll have to get A's or a high GPA in order to get into the college I want.
I Love...
To eat, sleep, swim, play the piano, and shopping. The best thing I like to do is hang out with friends. I'm absolutely addicted to puppies. Especially POMERANIAN!
I Dream...
I would like go to a UC and then graduate with either a master's degree or Ph D. Then I would like to become an Optometrist. Of course I'll have to get A's or a high GPA in order to get into the college I want.
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