IN= Ionization Energy
EN= Electronegitivity
1. Why Francium is the biggest element with the lowest IE and EN?
its the bottom corner of the periodic table, there fore having the lowest EN. Francium has 7 shells and within that 7th period it has the least amount of Protons in its row. having low IN however, is because it is an alkali metal, and it has a charge of +1. Alkali metals are most likely to give away there electrons.
2. Why Helium is the smallest element with the highest IE?
helium has the smallest element because it has one shell and 2 protons instead of one (Hydrogen) which pull the shells tighter together creating a high IE.
3. Why Noble Gases don't have EN values?
the have full valence shells and they are stable so they dont need to give away or gain electrons.
4. Why Fluorine has the highest EN?
it has seven valence electrons and is the smallest element out of the halogens so the shells are tighter.
Krissy Russell-Houlet
Thursday, October 7, 2010
Friday, September 10, 2010
GOLD! its element atomic # 79!!
1. My Name: France (French): Or Spain (Spanish): Oro Holland (Dutch): Goud
2. Pictures Of Gold: this is wut GOLD Looks like in its pure form!!!
2. Pictures Of Gold: this is wut GOLD Looks like in its pure form!!!
another picture of gold
3. Nucleus
how many Protons and neutrons does the nucleus of my most common isotope contain?
Answer: Au-198
What is the natural abundance of gold? (in Percent)
Answer: 100%
What is Gold's Nuclear Spin?
Answer: 3/2
What is the Average Atomic Mass of Gold?
Answer: 196.97 (or) 197
**Fun Fact**: Au-198 is also used to treat cancer.
4. Electrons
How many electrons are there in a neutral atom of gold?
Answer: 79
how mant shells of electrons does gold have?
Answer: 6
This picture is of schematic representation of the shell structure of gold
5. Atom
what is gold's atomic radius in meters?
Answer: Radius =174 pm
(1 pm = 10^-12 m)
radius in meters= 174(10^-12)
6. Properties
what are Gold's properties in its pure element form?
Answer:
Melting point: 1337.33 (or 1947.52 degrees F) K
Boiling point: 3129 (or 5137 degrees F) K
Liquid range: 1791.67 K
7. Gold's Home
what is the abundence Gold's body in grams?
Answer: 5-6g
What is Gold's abundence in the earth's crust and in our universe in (Parts Per Billion (PPB))?
Answer:
Universe: 0.6
Sun: 1
Meteorite (carbonaceous): 170
Crustal rocks: 3.1
Sea water: 0.05
Stream: 0.002
Human: 100
8. Gold's Compounds
What compounds does Gold form?
Example #1: Gold trifluoride: AuF3
9. Gold's Story
Who Discovered Gold?
Answer: John Dalton
How, When, and where was Gold Discovered?
Answer:
How:
Dalton's theory of atoms was published by Thomas Thomson in the 3rd edition of his System of Chemistry in 1807 and in a paper about strontium oxalates published in the Philosophical Transactions. Dalton published these ideas himself in the following year in the New System of Chemical Philosophy.
When: autumn of 1803, published in 1807 by Thomas Thomson
Where: N/A
10. Gold's Jobs
What jobs does Gold perform in society?
Example #1: Gold Wedding bands
Example #2: Since gold is inert and possesses useful properties when alloyed, gold is used extensively for dentistry in gold teeth, dental attachments, inserts, and solders.
11. Fun Facts
This Information Can Be found at : www.webelements.com |
Wednesday, September 8, 2010
Welcome to Krissy's Blog
My name is Krissy. I am Fifteen years old, and i Recently moved to california from Idaho. The new school i am attending is very hard. but my life is way better now, in cali, then it was in idaho. i have only sibling, a brother named Charlie. My favorite color is yellow. i wear it everyday- its an amazing bright color. I love my dog, Piper Lily. She is a blonde Shih-Tzu.I plan to go to Stanford University to be a pediatric cardio surgeon. i have lots of new friends- inlcuding the guy sitting next to me; his name is Rami. lol and my next door neighbor; her name is Alex and her best friends, analyse, irene, and shatty. Anyways. thats my blog so far.
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