Why Big Fr and Hungry F

1.   Why Francium is the biggest element with the lowest IE and EN


Francium is on the bottom most left part of the periodic table. It has the largest atomic radius because it has fewer protons in the nucleus so there is less of an attraction; it has a low ionization energy. It has the most shells.


2.  Why Helium is the smallest element with the highest IE


Helium has the highest ionization energy because it has strong attraction because it has only one energry level and has two protons in the nucleus. It is holding its electrons the tightest so it needs a lot of energry to remove the electrons. It is on the top right of the periodic table.


3.   Why Noble Gases don't have EN values
      
Noble Gases have a full valence electron shell so they do not need to gain electron, so they do not have electronegativity.


4.  Why Fluorine has the highest EN


Fluorine is a halogen which means it has 7 valence electrons so it just needs one electron to fill its shell. Fluorine is the smallest so it has greater attraction.

Tin is Element #50

1. My Name:

In English, my name is Tin. My symbol, Sn, comes from the Tin's Latin name stannum. No one really knows where my name, Tin, originated. My German name is Zinn, my Swedish name is Tenn, and my Italian name is Stagno.

2. My Image:

Me as a pure element: I look silvery and shiny

3. My Nucleus:

My average atomic mass is 118.72. My most abundant isotope is Sn-120. This means it has 50 protons and 70 neutrons. Another one of my isotopes is Sn-118 with a natrural abundance of 24.22% and the half-life is stable.

4. My Electrons:

There are 50 electrons, since there are 50 protons in a neutral tin atom. There are 5 electron shells: 2, 8, 18, 18, 4.

5. My Atom:

My atomic radius in picometers is 140.5 so it is 0.0000000001405 meters.

6. My Properties:

Melting point: 505.08 K

Boiling point: 2875 K

Liquid Range: 2369.92 K

7. My Home(Body, Planet, Universe):

In a 113lb body, there is approximately 0.010260400000000001grams of me in it.

In Earth, by weight, my abundance is 2200ppb (parts per billion)

In the Universe, my abundance is 4ppb

8. My Compounds:

 Some compound examples are OXIDES:

Tin Oxide: SnO

Tin dioxide: SnO2

FLOURIDES:

Tin difluoride: SnF2

Tin tetrafluoride: SnF4

 

9. My Story:

No specific person has discovered me. I have been known since ancient times.I have been used for at least for 5500 years according to archaeological evidence. When I am mixed with copper, I make the alloy bronze, very famous of the Bronze Age.

10. My Jobs:

Some of my jobs include:

• 
  
  used to coat other metals to prevent corrosion
• 
  
  tin salts sprayed onto glass are used to produce electrically conductive coatings
• 
  
  window glass is made by floating molten glass on molten tin to produce a flat surface

11. Interesting Fact:

The actor who played the Tin Man from the 1939 movie, The Wizard of Oz, who was supposedly made out of tin, was really wearing aluminum paste on his face, not tin.

12. My Reference:

Web Elements: http://www.webelements.com/

Envirnmental Chemistry: http://www.environmentalchemistry.com/

ChemiCool: http://www.chemicool.com/

Jefferson Lab: http://www.jlab.org/

My First Blog

Hey. Welcome to my first blog.

One thing I love is Harry Potter. I am so obsessed that I am going to the Wizarding World of Harry Potter this October. I am going to miss a couple days of school for it, but I think it is totally worth it. I also love Ashley Chan and listening to the Beatles.

My dream is to go to a nice college, graduate, and get a good job. I don't know what I am doing for a career yet, it is too early to decide. When I am older, I want to live in a nice house with a white picket fence and have a really nice car.