periodic table

• 6 properties of a typical non-metal include:

  1-low boiling points

  2-poor electrical conductors

  3-poor heat conductors

  4-dull in appearance

  5-low density

  6-the are brittle

• name 3 properties of non-metals

  1-Brittle 2-poor conductors 3-low boiling points
• Columns are called Groups.


  Rows are called periods.
• The periodic table was first developed by a Russian scientist called Dmitry Mendeleev
• Group 2 is known as the transition metals
• Mendeleev's periodic table gradually evolved over the years
• The block in the middle of the periodic table is called the transition metals block
• Group 1 is also known as the alkali metals
• Reactivity of metals within the same group can be predicted based on properties
• The periodic table is represented in different colors and layouts
• Group 1 is known as the alkali metals
• Metals are found in Group 1 and Group 2
• Oxygen and helium are gases
• Properties in a group can be used to predict the reactivity of metals within the same group
• The different blocks in the periodic table have specific names
• Group 3, 4, 5, 6, and 7 have specific properties
• Separation between metals and non-metals is indicated in the periodic table
• C is carbon, in group four
• Group one metals

  • Lithium
  • Sodium
  • Potassium
  • Rubidium
  • Cesium
• Group seven elements are known as halogens
• Capital and lowercase letters in element symbols are important
• Groups of metals

  • Alkali metals
  • Transition metals
  • Non-metals
• As you go down group one metals

  They become more reactive
• Reactivity of halogens

  They become less reactive as you go down the group
• Fluorine is the most reactive halogen