Showing posts with label neutrons. Show all posts
Showing posts with label neutrons. Show all posts
Monday, January 26, 2009
1.07b - Anatomy of the Atom - 10:01
KEY TERMS: valence electrons, nucleus of the atom, orbitals, shells, protons, neutrons, atomic number, atomic mass (round off), electrons, periods (horizontal rows), groups (vertical columns), period number=#of orbitals, atomic number=# of protons and electrons for neutral atoms
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