Periodic Table, Noble Gases, Group 1 Elements

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  • Created by: Rianne B
  • Created on: 13-04-13 10:27

An arrangement of the elements according to their atomic number.  Most elements in the periodic table are metals(left side).  Non-metals are found on the ight of the periodic table. 

Properties of Metals:

  • Tend to be solid with high melting and boiling points with relatively high densities.
  • Form positive ions.
  • Conduct heat.
  • Good condutors of electricity.  Thier oxides are bases.
  • They react with acids to give salt and water.

Properties of Non-metals:

  • Tend to have low melting and boiling points.
  • Tend to be brittle as solids, even if crystalline.
  • Form negative ions and covalent compounds. 
  • Form oxides which are acidic or neutral.

Groups and Periods

A group is a vertical column in the Periodic Table.  Elements in a group have similar chemical properties becuase they have the same number of electrons in their outer shell.

A period is a hortizontal row of elements in the Periodic Table.  Elements show

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