Activity #2

 

Carbon

Lithium

Beryllium

Questions:

1. Atomic number for each model?

Carbon:  6

Beryllium: 4

Lithium:    3

2. Atomic mass for each model?
Carbon: 12
Beryllium:  9
Lithium:    6


3. What subatomic particles are equal in number?
Carbon: 6 protons and 6 neutrons


4. How would you make an isotope for one of your models? What would you change?
-I would have to keep the same atomic number of the element but have different mass numbers, adding or removing a neutron would alter the nucleolus of the element. 


5. What makes up most of the volume of an atom?
-The nucleolus holds the most volume of an atom because that is where the protons and neutrons are located. 


6. Image of an excited electron:

7. What occurs when electron returns to the ground-state?
-When the electron goes back to it's lower state it generates a photon of energy that we see as a spark of light. 


8. Why are some elements different colors when they are excited?
-Elements have different diverse gases, so when those gasses pass through the prism they produce different shades of light.


9. Explain how the color of fireworks arise?
-Each firework has their own different combination of elements so when they are burned and brought to the excited state and explode as those electrons are going back to the ground-state the photon lights omitted and the color is shown. 


10. Explain the overall organizational structure of the periodic table?
-First the elements are organized horizontally by their period and then vertically by their groups. The elements are then further broken down then into the four sections: Alkali Metals, Alkaline Earth Metals, Halogens, and Noble Gases, and then further more into metals, nonmetals, and metalloids.


11. Two examples from each:
Alkali Metals: Sodium and Potassium
Alkaline Earth: Calcium and Beryllium

Halogens:Fluorine and Iodine

Noble Gases: Neon and Helium

Transition Metals: Iron and Silver

Non-Metals: Sulfur and Oxygen

Metalloids: Arsenic and Polonium