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1498409
C1.1 Fundamentals In Chemistry
Beschreibung
Overview of the first Chemistry Unit.
Keine Merkmale angegeben
gcse chemistry
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Zusammenfassung der Ressource
C1.1 Fundamentals In Chemistry
Elements
Only one type of atom.
Each has a different symbol.
Atomic Number
Equals Number of Protons
Atomic Mass
Equals Number of Protons and Neutrons
Number of neutrons = Atomic Mass - Atomic Number
So Bigger Number
Compounds
Two or more different types of atom chemically joined.
Chemical Formula
Shows elements it is composed of and how many of each.
Atom
Nucleus
Protons
Positive Charge (+1)
Relative Mass of 1
Neutrons
Neutral Charge (0)
Relative Mass of 1
Shells
Electrons
Negative Charge (-1)
Relative Mass of 1/2000
Electronic Configuration
1st Shell = 2 Electrons Max
2nd Shell = 8 Electrons Max
3rd Shell = 8 Electrons Max
4th Shell = Any Extra
Shells Fill From the Inside First
Particle with No Overall Charge
Equal Numbers of Protons and Electrons
Charges Cancel Out
Bonding
Covalent
Sharing Electrons
Non-Metal and Non-Metal
Ionic
Metal and Non-Metal
Ions
Charged Particles
Metals Give Electrons
Positive Charge
Non-Metals Take Electrons
Negative Chage
Conservation of Mass
Atoms Can't Be Created or Destroyed.
Mass At the start = Mass At the End
Balanced Equations
Periodic Table
Periods
Horizontal Rows
Period Number = Number of Shells
Groups
Vertical Columns
Group Number = Number of Outer Shell Electrons
Group 1 (Alkali Metals)
One Outer Shell Electon
Very Reactive
Metal + Oxygen = Metal Oxide
Metal + Water = Metal Hydroxide + Hydrogen
More Reactive Down The Group
Group 0 (Noble Gases)
Full Outer Shell
Unable to Make Bonds
Unreactive
Medienanhänge
Atomic_Structure.gif (image/gif)
Element_Symbols (image/jpg)
Conservation_of_Mass.gif (image/gif)
Electronic_Configuration (image/jpg)
Periodic_Table (image/jpg)
Compounds.gif (image/gif)
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