Group 1 Elements

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Across
  1. 4. Which element is soft and white with a silvery lustre and has a low melting point?
  2. 5. What is the first element in the periodic table?
  3. 6. What is a metal but is soft enough to cut with a knife?
  4. 7. Which element is the second most electropositive and alkaline element
Down
  1. 1. What element has the symbol of Cs?
  2. 2. What can be found in table salt?
  3. 3. What is the most explosive element on the periodic table?