Monday, October 8, 2007

October 8, Periodic table organization

Orginization of periodic table
Periods-Horizontal
Groups-vertical

Group 1-alkali metals, most reactive metals, lose 1 electron in reactions
Group 2-alkaline earth metals, less reactive than group 1 but still reactive, lose 2 electrons in reactions.
Group 17-most reactive not metals, gain 1 electron in reactions
Group 18-noble gases, non-reactive

Elements you should recognize
Na, K, Pb, Au, Ag, Fe, and Sn

You should be able to determine the number of protons, neutrons and electrons in an atom by reading the periodic table.

Be able to describe the different properties of metals, transition metals, metalloids, non-metals and rare earth metals and to be able to roughly map them on the periodic table.
Notebooks will be collected Wednesday, October 10.

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