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Ch.3 voc

QuestionAnswer
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
Created by: josephgates
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