Transition Elements

• Where are metals and non-metals located on the periodic table?

  Metals are on the left side and non-metals are on the right side
• Where are transition elements found on the periodic table?

  In the central part of the periodic table
• What type of elements are all transition elements?

  Metals
• What are the key features of alkaline metals?

  • Soft and can be cut with a scalpel
  • Relatively low melting points
  • Low density (lithium, sodium, and potassium are less dense than water)
  • Highly reactive with oxygen, chlorine, and water
  • Form ions with a one positive charge
• How do alkaline metals react with water?

  They react very rapidly
• What is an example of a transition element mentioned in the video?

  Iron
• What are the properties of transition elements compared to alkaline metals?

  • Hard and strong metals
  • High melting points (except mercury, which is liquid at room temperature)
  • High density (large mass for their volume)
  • Much less reactive than group one metals
• How do transition elements react with oxygen, chlorine, and water?

  They react slowly
• Why are transition elements considered useful?

  Because of their low reactivity
• What type of ions do transition elements form when they react?

  They lose electrons to form ions with a positive charge
• How do the charges of transition element ions differ from alkaline metals?

  Transition elements can form ions with different charges
• What are the possible charges for iron ions when it reacts?

  Two positive or three positive
• What are the possible charges for nickel ions when it reacts?

  Two positive or four positive
• What are the characteristics of colored compounds formed by transition elements?

  • Iron oxide is reddish
  • Manganese chloride is pink
  • Chromium chloride is purple
  • Copper sulfate is blue
• What is a property of transition elements related to chemical reactions?

  They can be used as catalysts
• What is the significance of catalysts in chemistry?

  • Increase the rate of chemical reactions
  • Often used in various chemical processes
• Where can you find questions on the topic of transition elements?

  In the vision workbook