EDUC109 Study Guide - Final Guide: Alkali Metal, Atomic Number
31 May 2018
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The Periodic Table of Elements
= Alkali metals
= Alkali earth metals
= Noble gases
= Halogens
= Lanthanides
= Actinides
= Transition metals
- The chemical elements are arranged in order of increasing atomic number.
- Rows are called periods & Columns are called groups.
- Elements with similar chemical properties are in the same group of elements.
Properties of Metals
-Solids at room temperature, except Hg
-Reflective surface- Shiny
-Conduct heat/ electricity
-Malleable- Can be shaped
-Ductile- Drawn or pulled into wires
-About 75% of the elements are metals.
-Lower left on the table.
Properties of Non-Metals
-Found in all 3 states (solid, liquid, gas).
-Poor conductors of heat/ electricity
-Solids are brittle.
-Upper right on the table, except H
Group VIII (8)- Noble Gases
-Called noble because they have a full outer shell
1 8
2 3 4 5 6 7
