8/25/09

Post date: Aug 25, 2009 12:52:30 AM

Bell Activity: What is an atom?

Building blocks

    • Atom - the smallest unit of an element that still behaves like that element

      • made of protons, neutrons, and electrons

        • protons and neutrons at the center, make up the nucleus

        • electrons orbit around the nucleus

      • Periodic Table

        • Atomic number is number of protons

        • Atomic mass is protons + neutrons

        • Same number of electrons as protons

        • Draw the atoms of Magnesium, Iron, Aluminum, Zinc, Silicon, and Phosphorus. Color code the protons, neutrons, and electrons and include a key. Due Wednesday.

    • Molecule - two or more atoms that are bonded together

    • Bill Nye - Atoms and Molecules