Phase Diagrams

A phase diagrams is a representation of the states of a substance in relation to temperature and pressure. This basically means that a phase diagram tells tells what physical phase (solid, liquid, gas), depending on the pressure and temperature. 

We also leaned about heat/cooling curves, which compares heat added and temperature

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Extra Information:

Phase Diagrams

Heating/Cooling Curves

Intermolecular/Intramolecular Forces

Post-Test Thoughts

Long. 50 questions in less than one hour is hard to finish, thankfully where wasn't a lot of math after the first 10 or so questions. Overall I fell pretty good about that test, was able to finish in time and not guess on a whole bunch of the question. Should probally start studying more by doing the practice quizzes. Still, overall, felt pretty good about it.

Quantum Numbers

Quantum numbers seem like a more confusing way of organizing atoms on the periodic table. Basically they look like this:

I am not totally sure what quantum numbers are used for, so the other type of organization works just fine. I would guess that they would be used for higher levels of mathematics and physics that deal with quantum mechanics.

Some more Information here and here.

Pre-Test Worries

After doing rather well on this quiz I hope that I do well with this test. The last few tests have been rather hard, but I do think that I have a good chance to do well on this one, if I study.

Organization

Besides just using the names of the atoms, it is possible to categorize atoms form one another by using a method of organization. There are four levels, going from principle energy level, sublevel, orbital, and spin. Principle energy level is normal equal to the period which an element resided, exept if the atom is a rare earth metal or a transition metal. Sublevel depends on what block the atom resides in -- metal, transition metal, non-metal, and rare earth metal. Orbitals depend of sublevel, and spin depends on number of electrons.

Here is a detailed way of how the atoms are named in this method.

Electronic Structure

Waves, we leaned about waves. And no, not the really cool ocean waves, but the waves of subatomic particles (electrons). So apparently electrons like to move in a wave like nature, where they oscillate back and forth. I don't think anyone knows why they do this, but rather accept it was reality. There is also many things that are to be known about these waves:

Using math, it becomes possible to find the values of some of these variables (wavelengh and amplitude) by using he equation:

Honesty, your probably confused right now, and I don't blame you, so here and here are a couple of links that will explain whats going on better. 

Fun with Fire

New unit, new labs. This was by far one of the most exciting labs of the year. We started my starting a bunson burner, and putting sticks with tips soak with different chemicals in the flame. The cool part was seeing the flame turn cool colors, like green, blue, and a pinkish red.

Whats really cool is how the same principles we learned about in class is used in fireworks, and thats how different colors are made when the fireworks explode.