Why Big Fr and Hungry F

1.) Why Francium is the biggest element with the lowest IE and EN?
            Francium is the biggest element with the lowest Ionization Energy because it has seven electron shells and only one valence electron. This tells us that it is very reactive in wanting to lose an electron and that since it has seven shells, it has a very weak attraction to its valence electron since it is so far away. The low electronegativity is because it has one valence electron which it wants to lose and not gain valence electrons. That is why its ability to gain an electron is so low.

2.) Why Helium is the smallest element with the highest IE?
             Helium is the smallest element with the highest ionization energy because it is so small and there is only one shell, the protons exert such pull to keep the electrons close to the nucleus. So, the energy to remove an electron is the highest in the periodic table based on its size and number of electron shells.

3.) Why Noble Gases don't have EN values?
               Noble Gases dont have electronegativity values is because electronegativity is the ability for an atom to gain an electron and Noble Gases already have 8 valence electrons. Noble Gases do not want to gain or lose electrons as it already has a perfect 8. That is why it does not have electronegativity values.

4.) Why Fluorine has the highest EN?
                Fluorine has the highest electronegavity because it is a very small atom with only 2 electron shells. It exerts the most pull from its positive nucleus and it has 7 valence electrons so it wants another valence electron to become a noble gas.

Silicon is Element #14

1.) My element is Silicon, Atomic Number 14. It is also known as Silicium in Latin, Křemík in Czech, and Kisel in Swedish. The name originated for the Latin word of "flint" which translated to "silicis". The name was given in 1824 by scientist Jans Jacob Berzelius, a Swedish scientist.

2.)

Pieces of Pure Silicon.


3.) The most common isotope is known as ²⁸Si and has 14 neutrons as well as 14 protons in its nucleus. The other naturally occuring isotopes for Silicon are known as ²⁹Si and ³⁰Si

•  ²⁸Si is considered stable and does not have a half-life. Its natural abundance is 92.2297%, and the average atomic mass is 27.9769271 in (m_a/u).
• ²⁹Si is also considered stable and does not have a half-life. Its natural abundance is 4.6832%, and the average atomic mass is 28.9764949 in (m_a/u).
• ³⁰Si is also considered stable and does not have a half-life. Its natural abundance is 3.0872%, and the average atomic mass is 29.9737707 in (m_a/u).

 4.) In a neutral atom of Silicon, there are 14 electrons. Silicon has 3 electron shells with two electrons in the first shell, 8 electrons in the second shell, and 4 in the third shell.

5.) The atomic radius of silicon is 235.2 picometers which is 2.35200 x 10^-10 in meters.

6.) The properties of Silicon in its pure element include

• Melting Point: 1687 [or 1414 °C (2577 °F)] K
• Boiling Point: 3173 [or 2900 °C (5252 °F)] K
• Liquid Range: 1486  K 
• Thermal Conductivity:  150  W m^-1 K^-1
• Coefficient of linear thermal expansion: 2.6  x 10^-6 K^-1
• Density of solid: 2330  kg m^-3
• Molar Volume: 12.06  cm³
• Velocity of Sound: 2200  m s^-1
• Young's Modulus: 47  GPa
• Bulk Modulus: 100  GPa
• Mineral Hardness: 6.5  (no units)
• Electrical resistivity: about 100000 10^-8 Ω m; or mΩ cm

Silicon Tetrachloride

 7.) There is approximately 14.99 grams of silicon in a 127 pound human. In the Earth, the crust is composed of 25.7% silicon by weight. In our universe, there is approximately 70,000 part per billion by weight.

8.) Some common compounds that silicon forms are:

• Silicon Oxide or SiO₂
• Silicon Tetrachloride: SiCl₄ 
• Trisilicon Tetranitride: Si₃N₄

Trisilicon Tetranitride

 9.) Silicon was originally discovered by a Swedish Scientist named Jans Jacob Berzelius in 1824. In Sweden, the Berzelius was trying to isolate the element by reacting potassium fluorosilicate with potassium to wash away the potassium and isolate the element. He produced an amorphous sample of pure silicon.

10.) Silicon is a invaluable element in modern day human society. It is used in computer chips, lubricants, used in concrete mixtures, used in medical implants, and in silica (sand) it can be heated to make glass.

11.) An interesting fact about silicon is when workers work in environments saturated with silicaceous dust and it is breathed in, it can develop into a serious lung disease called silicosis. 

12.) My Reference: Webelements.com

My future is pretty clouded...proving im from SF....

Future future future. That's one of the few questions I don't have an answer for. There isn't really much I'm set on working on or working toward. Right about now I'm just trying to swim faster and work harder to create a better me. I hope to find something that sticks out and something I really like in the process. For the time being, I've thought of becoming a paramedic or an ER doctor. They seem like fun but challenging professions. But, I am honestly not set on anything in my future. Just pushing all my goals and all my classes to make the best out of myself and then decide what I want to do.

The things I love, aside from just NOM NOMing

Blogging yet again!

There are many things I love in my life. Most of all are probably food, swimming, family and friends. Most obviously, I love food. Based off my screen name, you can probably deduce I love eating, or as I like to say, nom noming. And yes, the word can be used both as a noun and a verb (nom noming, or really good nom noms.) I enjoy all kinds of food, from American to Thai to Middle Eastern. Any kind of food is worth trying and one of my mottoes is "eat hard, live fast".
Another thing I love is swimming, I have been swimming for a long time now and find it a great way to get out and have fun. I love the water and the feeling you get when you're going fast. Its a love/hate relationship, there are days I despise going to practice and days I cannot wait to get into the water. Swimming is pretty much my life.
In my downtime when I'm not swimming or doing homework, I love to just hang out with my friends. There's nothing better than kicking back with some of your bestest buddies.

Welcome To My Blog

Welcome!
I am Nick Ueng, a student at Mills High School. Its nice to see someone taking interest in my blog, and listen/read what I have to say! I am blogging this for my Chemistry class. its a fun class where we learn all about the science of chemistry and for the time being, I'm just blogging to blog. Hope you enjoy what you read!