1

Atoms, Ions, and Molecules

Bell Ringer 09.07.11

•Which of the following represents an organic molecule?▫A. CuSO4 H2O

▫B. C12H22O11

▫C. AgNO3

▫D. H2O

Atom

•Smallest basic unit of ______.

•What else have we identified as a basic unit of structure and function?

Element

•Type of atom•Can’t be broken down into a simpler

substance•Identified by number of ______•How can we identify the number

Of protons, neutrons and electronsFrom this picture?

Elements

•Carbon, Oxygen, Nitrogen and Hydrogen=96% of human body’s mass

Bohr Model

Draw a hydrogen, oxygen, and carbon atom. Check your book to see how many protons, neutrons, and electrons to include.

Ions and Isotopes

•________-same number of protons (same element) different number of neutrons (different mass)▫Ex: Carbon-14

• ________-atom or group of atoms with a positive or negative charge Ex: Na+

Is this a cation or anion? What’s the difference?

Compounds

•Different elements bonded together in a certain ratio

•Can be _______ or ________•Examples?

Compounds

•Compounds often have different ______ than the elements that compose them.

•Example: water

Chemical Bonds

•Chemical bonds form between ______•Different types: Ionic and Covalent

Assignment

•Create a diagram showing the differences between Ionic and Covalent bonds.

•Use your textbook and the article provided for information

•Include:▫Characteristics▫Pictures/Drawings▫Examples