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Ch.3 voc
Question | Answer |
---|---|
When elements are arranged, similiarities occur | Periodic Law |
Horizontal rows in the periodic table | Period |
Column, group of electrons | Group |
Form that has a net electric charge | Ion |
Number tells you how many protons are in an atom | Atomic Charge |
Number of protons and neutrons in an atom | Mass Number |
All atoms of the same element | Isotopes |
One-twelfth the mass of carbon atom | Atomic Mass Unit |
A weighted average | Average Atomic Mass |
Shiny, solid that can be shaped or stretch | Metals |
Solids,liquids, and gases, typically dull and brittle | Non-metals |
Metals that can conduct electricity | Semiconductors |
Soft,shiny, and react violently with water | Alkali Metals |
Less reactive with water more stable, have two valence electrons | Alkali Earth Metals |
Maluable able to be shaped | Transition Metals |
Strong compunds hard to breal apart | Halogens |
Exist as sinle atoms | Noble Gases |
Collection of large numbers | Mole |
Formula for figuring atomic numbers | Avogadro's Constant |
Mass in grams of a substance | Molar Mass |
Used to relate unit of measurement | Conversion Factors |