GROUP I ELEMENTS

12345678910
Across
  1. 1. Alkali metals have low ____________ and boiling points compared to other metals
  2. 4. When Group 1 elements react with water, they produce hydrogen gas and a ______ solution
  3. 6. Alkali metal with a lilac flame color
  4. 8. One of the element in the Group 1
  5. 9. The alkali metal with the lowest density: ____________
  6. 10. When group 1 elements react with --------, it will form a metal chloride.
Down
  1. 2. Reactivity of group 1 elements ------------- down the group
  2. 3. Group 1 elements react vigorously with ----------.
  3. 5. What is formed when lithium reacts with chlorine gas?
  4. 7. What is the colour of the solid formed when sodium reacts with the oxygen?