Periodic Table

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Across
  1. 5. It´s equation is CU+O
  2. 7. It´s group is 6 and period 7
  3. 8. It´s after Zinc
Down
  1. 1. It´s atomic number is 12
  2. 2. It´s mass number is 40
  3. 3. Group six,period 4
  4. 4. It´s symbol is Na
  5. 6. It´s mass number is 238