Chapter 1: Intro to Chemistry
Intro to Chemistry Why chem? - Lot of chemical reactions take place in metabolism and biology that are understood by the laws of chemistry Foundation: Matter --> Anything that has weight and takes up space Ex: Chair, TV, Bottle of water Atom --> Small particle present in everything that has matter; contains smaller particles called protons, neutrons, and electrons Imp: # of protons = # of electrons ( MOST OF THE TIME) Element --> Inseparable substance that is made up of atoms that have the same number of protons Ex: Hydrogen, Helium, Oxygen Protons --> Particle found in the nucleus (center) of an atom; has a positive charge Neutron --> Particle found with protons; has no charge Electron --> Particle found in orbitals around the center; has negative charge; the more further an electron is from the center, the more energy it will possess 1. Similar atoms bond together to form a molecule and two or more molecules form an element Ex: Hydrogen ato...