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PS CHEM Chapter 1
Chemical Bonds
Term | Definition |
---|---|
Electron Cloud | Region outside of the nucleus in which electron travel |
Noble Gases | Elements in group 8 of the periodic table. These contain 8 valence electrons and are generally not involved in chemical bonds. |
Electron Dot Diagram (Lewis Dot) | A symbol for an element surrounded by as many dots as there are valence electrons for that element |
Chemical Bond | A force holding atoms together |
Halogens | Elements in group 7 of the periodic table. These contain 7 valence electrons and will form ions with a -1 charge. |
Ion | A charged Particle |
Ionic Bond | A bond type in which atoms are held together by electrostatic forces (positive and negative charges) |
Compound | A pure substance containing two or more elements that are chemically bonded |
Metallic Bond | A bond that forms when metal atoms share pooled electrons. |
Covalent Bond | A bond that results from the sharing of valence electrons |
Polar Bond | A bond that results in an imbalance of shared electrons - the shared electrons spend more time around one atom than another. |
Non-polar | Having no charge imbalance |