Assignment 2

1. Atomic # for my models

Hydrogen 1
Helium 2
Lithium 3

2. Relative Atomic Mass for models

Hydrogen: 1.00794
Helium: 4.002602
Lithium: 6.941

3. Subatomic particles that are equal

The protons and neutrons

4. How would you make an isotope?

The number of neutrons inside the nucleus would increase. For example, adding a neutron to the hydrogen nucleus would cause it to become an isotope.

5.What makes up most of the volume of an atom?

Empty space. For example, the subatomic particles in Hydrogen take up only 0.0000000000004 percent of space in an atom.

6.What happens when energy excites an electron?

The electrons move into higher orbitals when absorbing energy, then return afterwords to a ground state.



7.What do we typically observe when the electron returns to the ground-state?

A proton is emitted.

8.  Why are some elements different colors when they are excited?

Each element has different energy spacing levels. These create different emission colors  when certain elements are excited.

9. Different fireworks colors.

Different firework colors are created by filling packets with different combinations of elements (ex. metels, salts, etc.) When excited (burned) they create different colors.

10. Overall periodic table organization.

First off the table is organized by atomic number starting with hydrogen. The elements are also grouped together in families that closely resemble each other in properties. These groups are Alkali Metals, Alkaline Earth, Halogens, Noble Gases, Transition Metals, Non-Metals, and Metalloids.

11. Example of two elements for each grouping

Alkali Metals: Lithium, Sodium
 Alkaline Earth: Magnesium, Calcium
Halogens:Bromine, Chlorine
Noble Gases: Helium, Neon
Transition Metals: Iron, Copper
Non-Metals: Hydrogen, Carbon
Metalloids: Boron, Silicon

12. Paragraph that describes how electrons behave.

After watching the video I have concluded that electrons tend to interfere with each other. They tend to act more like waves than marbles. Also that in an attempt to measure electrons travelling at a quantum level, they started to act more "normal" than they did before.