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6. What are the group 7 elements called?

  • Halogens
  • Metal halide
  • Alkali metals

7. What happens when you go down the group?

  • Reactivity stays the same
  • Reactivity decreases
  • Reactivity increases

8. The gain of an electron is called?

  • Reduction
  • Oxidation
  • Neither of thes

9. What is the least reactive out of Fluorine, Chlorine, Bromine, Iodine & Astatine?

  • Chlorine
  • Iodine
  • Fluorine
  • Astatine
  • Bromine

10. When they form an ion is it positive/negative/neutral?

  • Neutral
  • Negative
  • Positive

11. What do they do to get a stable outer shell?

  • Gain an electron
  • Lose an electron
  • Stay they same

12. What is iodine at room temperature?

  • Orange liquid
  • Grey solid
  • Green gas

13. What is iodine used for?

  • Sterilise wounds.
  • Manufacture of pesticides
  • Manufacture of plastics

14. What do they form when they react?

  • Neither of these
  • Ionic bonds
  • Covalent bonds