Properties of metals and non metals

• Transition metals are the metals not in a group in the periodic table.
• Transition metals share most physical properties with metals including being shiny and a conductor.
• However, transition metals have greater melting points, densities, strength, and hardness than metals.
• Properties of a typical metal (when solid): good conductor of electricity, good conductor of heat, shiny, high density, malleable, ductile.
• Properties of a typical non-metal (when solid): poor conductor of electricity, poor conductor of heat, dull, low density, brittle.
• Group 0 - noble gases
• The noble gases all have low boiling points (they get higher going down the group).
• The noble gases are inert- they are extremely unreactive.
• Group 1 - alkali metals
• The alkali metals are soft, have relatively low melting points, and have low densities.
• Going down group 1, the melting point decreases.
• Atoms of group 1 elements all have one electron in their outer shell (so become positive ions).
• The alkali metals react with water to produce a metal hydroxide and hydrogen.
• The group 1 elements react with oxygen from the air to make metal oxides.
• The group 1 elements react vigorously with chlorine.
• Group 7 - halogens
• The halogens exist as simple molecules, each made up of a pair of halogen atoms joined by a single covalent bond.
• In group 7, the further down the group an element is, the higher its melting point and boiling point.
• Label:

  A) Noble Gases

  B) Halogens

  C) Alkali metals

  D) Transition Metals