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Chemistry

Chapter 5-7

Question
Periodic Table: Created by, Dmitri Mandeleev
In the Periodic Table, atoms are arranged according to their... Properties
The Periodic Table is arranged... From left to right
Periods are... Horizontal columns
Atomic properties _____ as you go down the period Repeat
Periodic Law: When elements are arranged according to period numbers, there's a repetition of physical and chemical properties
Groups vertical columns
Groups have similar ___ ___ properties Physical and chemical
Groups are identified by Numbers and letters
Reprisentative Elements Group A elements, wide range of chemical and physical properties
Metals(except for H) are on Left side
Transitional and Inner transition metals: Group B
Non metals make up the __ ____ side Upper right
Halogens Group 7A
Noble gases Group 8A
Molecule Smallest electrically neutral unit of substance which still has properties of that substance
Diatomic Molecules made up of 2 atoms
Triatomic Molecules Made up f 3 atoms
Molecular compounds 2 non-metal form bond
Ions/Ionic compounds atoms or groups of charged atoms
Anion Atom has gained electron, now negitive
Cation Atom has lost electron and now positive
Created by: Meira L
 

 



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