Activity Two

Questions:

1. What is the atomic number for each of your models?
Neon: 10, Helium:2, Hydrogen:1
2. What is the atomic mass number for each of your models?
Neon: 20.18, Helium: 4.00, Hydrogen: 1.01
3. In your models, which two subatomic particles are equal in number?
Protons and Neutrons
4. How would you make an isotope for one of your models? What would change with the model?
An isotope is an atom with more neutrons than protons. You would add more neutrons into the model. The atomic number would change within the model.
5. Considering the overall volume of your element models, what makes up most of the volume of an atom?
Most of the volume is made up of absolutely nothing, it is just space inside the atom.
6. For one of your models, show with another image what happens when energy excites an electron.
When an electron is excited, it jumps up onto the next track onto the next electron.
7. Once the electron is excited, what do we typically observe when the electron returns to the ground-state?
Energy becomes emitted for the electron to return to the ground state.
8. Why are some elements different colors when they are excited?
Different elements have different emission spectras. Therefore, when they get excited, have different wavelengths and different patterns that appear through the spectrum, causing different colors to appear.
9. With the Fourth of July coming up quickly, explain how the colors of fireworks arise.
Fireworks have small pockets of metal salts and metal oxides, which react together to produce different colors.
10. Explain the overall organizational structure of the periodic table
The periodic table is organized by the kind of classification it goes under, like metal, non-metal, and metalloids.

11. List two example elements for each of these groups or classes: Alkali Metals, Alkaline Earth, Halogens, Noble Gases, Transition Metals, Non-Metals, and Metalloids.

Alkali Metals: Lithium, Sodium

Alkaline Earth: Calcium, Radium

Halogens: Chlorine, Iodine

Noble Gases: Neon, Helium

Transition Metals: Cobalt, Nickel

Non-Metals: Sulfur, Nitrogen

Metalloids: Silicon, Boron