Science week 1

    Cards (10)

    • Explain why elements in the same group have similar chemical properties
      Ans : Same number of outer electrons
    • Describe the trend in reactivity as u go down group 7
      Ans : it decreases
    • Where are the transition metals located
      Ans : Between group 2 and group 3
    • Why are gold and silver used in jewellery
      Ans : Because they don't react with water and oxygen
    • Why is copper used in electrical wiring
      Ans : good electrical conductor
    • What is the name of the allow made from iron and carbon
      Ans : Steel
    • How does this alloy compare with iron
      Ans: stronger and harder
    • Iron reacts with water to for which product
      Ans : Rust
    • Name the two types of ions formed by copper
      Ans : Cu+ and Cu2+
    • State a physical property of a transition metal
      Ans : conducts electricity
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