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Mini Lecture 3.0
The Periodic Table
Should Do's
1. State the periodic law and explain the organization of elements in the periodic table.
2. Predict the general properties of elements based on their location within the periodic table.
3. Identify metals, nonmetals, and metalloids by their properties and/or location on the periodic table
Metals, Non-Metals and Metalloids
Metals
Solids, ductile, metallic lustre, malleable, good conductors.
Ex; Ag, Fe
Metalloids
Properties of both metals and non metals, metallic lustre, brittle, semi-conductors.
Ex; B, Si
Non Metals
- can be solid, liquid or gas, dull, brittle, insulators.
Ex; CI, O
Main topic
Topic 3.0
Understanding Chemical Formulas
Should Knows
Should Do's
Topic 3.1 Drawing Lewis Structures
Should Do's
Draw Lewis Structures to represent bonding in chemical formulas.
Main topic
Chemical and Physical Change;
Physical Change:
- texture, shape, temperature, and a change in the state of matter
Changes of state (changes from a solid to a liquid or a gas and vice versa).
Separation of a mixture.
Physical deformation (cutting, denting, stretching).
Making solutions (special kinds of mixtures).
Chemical Change:
- color change, formation of a precipitate, formation of a gas, odor change, temperature change