Periodic Table Basics

Periodic Table Basics

Batman Video

Today when we walked into class, Mrs. Friedmann was showing a Batman video on the board.  If you would like to see the video again, you can click on the link below:
http://youtu.be/nltVuSH-lQM

Homework

First, Mrs. Friedmann told us the homework for the day. It was the Holy Atom, Batman worksheet, the ChemThink worksheet, and the assignments on ChemThink.  We are supposed to take notes on each tutorial assignment.  All assignments are due tomorrow. Mrs. Friedmann also mentioned that WebAssign has been glitchy in the past few days, mainly around the hours of 9 P.M. through 1 A.M.  She suggested to try to finish the WebAssigns before that time so problems don't occur.

Periodic Table

The class received a periodic table sheet.

Mrs. Friedmann told us to fold the piece of paper along the far left dotted lines.  After folding the paper, she said to fold the paper so Beryllium matches up next to Boron, Magnesium matches up next to Aluminum, and all the way down the column.  Mrs Friedmann said to write:

• "+1" above the column with Hydrogen
• "+2" above the column with Beryllium
• "+3" above the column with Boron
• Nothing above the column with Carbon
• "-3" above the column with Nitrogen
• "-2" above the column with Oxygen
• "-1" above the column with Fluorine
• "No charge" above the column with Helium

Then, we highlighted the metalliods, or semi-metals, which were: Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium

PowerPoint on Periodic Table and Atom Structure

After we filled out our sheets, Mrs. Friedmann showed us a PowerPoint of the section.  The PowerPoint can be found on Moodle under the Unit 2 Notes folder.  The terms/topics covered on the PowerPoint were:

• Who was Dmitri Mendeleev?
• The 3 categories of the periodic table 
• Properties of Metals, Non-metals, and Metalloids
• The periodic table groups and periods: Alkali metals, Alkaline Metals, Transition Metals, Halogen Family, Noble Gases, and the Rare Earth Elements
• Protons, Neutrons, and Electrons
• Atomic symbols
• Isotopes

ChemThink

To end class, Mrs. Friedmann gave us some hints for ChemThink.

1. Protons + Neutrons = Mass Number
2. Protons - Electrons = Charge
3. Mass Number is different from average Atomic Mass
4. The identity of an element is its number of protons
5. Protons are the same as the Atomic Number

The next scribe is.... Chris H.