PHYSICAL SCIENCE Lessons 1 and 2

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Across
  1. 1. / Element belongs to Group 3A and Period 2
  2. 5. / First element in Period 1
  3. 6. / Arranged the Periodic table of elements in increasing atomic masses
  4. 9. / Particle accelerator used to create Plutonium
  5. 10. / Greek word use to refer "salt"
  6. 11. / These refers to high-speed electron
  7. 12. / Elements with both metal and non-metal properties
  8. 13. / These are transition metals involving only the lanthanides and actinides
  9. 14. / First element in Group VA
  10. 16. / This group refers to Groups IB - VIIIB
  11. 19. / The other name of Oxygen Group
  12. 21. / Refers to the horizontal rows of the periodic table
  13. 22. / Found in Period 3 and Group IVA
  14. 23. / Particles made of a proton and a neutron
Down
  1. 2. / This group refers to the Groups IA to VIIIA
  2. 3. / The first element in the lanthanide series with element number 57
  3. 4. / refers to stars
  4. 7. / Total number of groups
  5. 8. / He created Neptunium by bombarding Uranium
  6. 15. / phenomenon which emits energetic particles from nuclear reactions
  7. 17. / refers to group of gases with limited reactivity
  8. 18. / Halogen in Period 3
  9. 20. / Element classification found in the right of Metalloid
  10. 21. / Positively charged particle