Activity #2

Shared publicly  -  Jan 10, 2014

 

Activity #2

 

  Oxygen
  Lithium
 Helium

1. Atomic Numbers: Helium 2, Lithium 3, Oxygen 8
2. Atomic Mass: Helium= 4.0026, Lithium= 6.941, Oxygen= 15.9994 or 16.00
3. Equal Subatomic particles: protons and electrons
 For example :Lithium-  protons 3 and electrons 3
Oxygen- electrons 8, protons 8
4. Using Lithium, it would normally have 3 protons but could have between 1 and 8 protons.
5. The nucleus which contains the neutrons and protons makes up most of the mass and then the empty space is what takes up most of the volume.  

6.   "excited" Lithium 

   


7. It emits a photon of energy- which may be like- Think of an explosion or fireworks
8.  The color given off depends on the amount of energy that is being released.  The element is being excited by something such as fire and the outer most electrons get pushed into a different orbital.  The excited electrons eventually move back into their normal orbital  and by doing this they release energy, called photons.
9.The heat that gets added to the element is why they change colors.  Elements react differently to added heat and the electrons gain energy at different levels.  Raw metallic metals burn and gives off light.
10. The overall structure of the periodic table is: Reading left to right they are arranged by increasing atomic numbers. It is organized in columns and rows. There are 18 vertical columns and the horizontal rows are called periods.  The rows are organized by the number of electron shelves that they contain.  After this they are broken down into either a class or a group.  The names of them are: Alkali Metals, Alkaline Earth, Halogens, Noble Gases, Transition Metals, Non-Metals, and Metalloids.
11. Alkali Metals:Lithium, Potassium
Alkaline Earth: Magnesium, Beryllium
Halogens: Chlorine, Iodine
Noble Gases: Helium, Argon
Transition Metals: Cobalt, Copper
Non-Metals: Carbon, Hydrogen
Metalloids:  Boron, Tellurium