Chemistry Notes

We make words with letters. We make chemical compounds with elements.

115 elements and all compounds are made from them.

These are listed in the front cover of your textbook.

We look at the following elements in particular:

Hydrogen H

Helium He

Lithium Li

Berylium Be

Boron B

Carbon C

Nitrogen N

Oxygen O

Fluorine F

Neon Ne

Sodium Na “natrium”

Magnesium Mg

Aluminum Al

Silicon Si

Phosphorous P

Sulfur S

Chlorine Cl

Argon Ar

Potassium K

Calcium Ca

Elements are abbreviated with 1 – 3 letters. The ones we look at are abbreviated with 1 - 2 letters. The first letter is always capitalized. The second letter is never capitalized.

HHeLiBeBCNOFNeNaMgAlSiPSClArKCa

H

He

Li

Be

B

C

N

O

F

Ne

Na Sodium Mg Al Si P S Cl Ar K potassium Ca

Chromium Cr

Manganese Mn

Iron Fe

Nickel Ni

Copper Cu

Zinc Zn

Gold Au

Arsenic As

Bromine Br

Silver Ag

Antimony Sb

Tin Sn

Iodine I

Mercury Hg

Lead Pb

Uranium U

Plutonium Pu

Friday Quiz on the first 20 elements.

I give you the symbol, you write out the name.

Chapter 1 Notes

Chemistry is the science of the materials of the universe and the changes they undergo.

Chemistry began with the Alchemists. Alchemists focused their attention on changing base metals into Gold.

It was Robert Boyle, the founder of modern chemistry, that put chemistry on a scientific footing. He invented the experimental method. In short, the experimental method is a troubleshooting procedure.

Observation à Hypotheses à Experiment (repeat) à Theory

A law explains what will happen. For example the law of gravity. A theory explains why it happens.

Scientism is science for the sake of political correctness. It is not science.

Examples

Global warming. Fluorocarbons.

If you can prove with an experiment, it is science.

Read chapter 1 and section 2.1 in your text book

Quiz next time on the first 20 elements.

I give you the symbol, you give me the name.