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•In your group, 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