Periodic Table
17
Elemen ts and their properties
description
This is a slide show about the Organization of the Periodic Table of the Elements
Transcript of Periodic Table
Elementsand their properties
• Elements, compounds & mixtures• Physical vs. chemical properties
• Organization of the periodic table
Review:
Introduce:
Elements Compounds & Mixtures
•Element: only one type of atom
Elements, compounds & mixtures
Carbon atom Hydrogen molecule
•Compound: two or more elements chemically combined
Elements, compounds & mixtures
Water Molecule(H2O)
Sugar Molecule(C6H12O6)
Jmol: an open-source Java viewer for chemical structures in 3D. http://www.jmol.org/
Elements, compounds & mixtures
•Mixture: two or more substances mixed together
Bisayan lady, Jelly Beans, 3/14/08, creative commons: attribution, non-commercial, share alike Agricultural Research Service, Orange Juice, 12/11/05, Public Domain
Element, Compound, or Mixture?
Kotomigd, Gold Necklace, 04/20/08, Creative commons: attribution, non commercial.
Salad Gold Table Salt Dressing Necklace
Julián Rodriguez Orihuela, Sal, 6/21/06, Creative Commons: attribution Hollie Butler, Salad Dressing, 9/16/08, Creatice Commons:
attribution-noncommercial-share alike
Hint: Gold = Au Salt = NaCl
Mixture Compound Element
Physical vs. Chemical
Properties
Physical properties Physical or chemical properties
• Phase• Color• Size• Shape
SolidRed/BrownOne InchLong and skinny
Chemical properties Physical or chemical properties
• pH• Reactivity• Flammability
(only for liquids) Iron + air = rustNot flammable
The Periodic Table
LeVanHan, Periodic Table, 12/17/08, Creative Commons Attribution-Share Alike
Periodic Table • Lists all Elements• Ordered by # of protons
The Periodic Table
1 2 3 4 5 6 7 8 9 …
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Groups:• Columns (up and down)
• Elements in a group have similar properties
The Periodic Table
Periods:• Rows (left to right)
• Elements in a period have same electron shells
The Periodic Table
The Periodic Table
MetalsTransition MetalsRare Earth MetalsMetalloidsNon-Metals
Organization of Periodic Table
Alkali MetalsAlkaline Earth MetalsHalogensNobel Gasses
The Periodic Table
SolidsLiquidsGasses
