Mothers day

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Across
  1. 3. The 30th element of the periodic table
  2. 6. Most unstable ion
  3. 9. Most electropositive element
  4. 10. Tallest mountain in europe
  5. 12. First space station
  6. 13. What makes puffer fish poisonous
  7. 14. Method of DNA sequencing
Down
  1. 1. The most powerful opoid (sort of)
  2. 2. The father , the sun and the holy spirit
  3. 4. Cinammon flavour chemical
  4. 5. A twenty-sided shape
  5. 7. Non-superimposable mirror images
  6. 8. Order which iris belongs to
  7. 10. Proved that there are infinite prime numbers
  8. 11. What equations and trees often have in common