FUSION

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Across
  1. 2. main atom who results of the fusion
  2. 5. Isotope of hydrogen containing a neutron and a proton in the nucleus
  3. 6. different forms of an element with the same number of protons but not the same number of electrons
  4. 9. name of the most ambitious project in fusion's field
  5. 11. it will produce energy but without C02
  6. 12. amount of degre celcius during fusion
Down
  1. 1. unit of energy measurement
  2. 3. Third isotope of hydrogen, whose nucleus contains one proton and two neutrons
  3. 4. the addition of two atoms of oxygen
  4. 7. who invented the formula E=mc²
  5. 8. fourth state of the matter
  6. 10. the tokamak's heart