Science

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Across
  1. 2. Known in glass, dye, and cement making
  2. 3. The simplest, lightest, and most abundant element in the universe
  3. 7. Positive charged subatomic particle
  4. 9. Proposed the geometric solids
  5. 11. Negative charged subatomic particle
  6. 12. General region surrounding nucleus
  7. 17. Pure chemical substances
  8. 19. Perfected the use of bronze
  9. 21. Used four 4 and 3 principles to transform or transmute substances
  10. 23. Searched plants & minerals for man’s longevity
  11. 24. Electron absorbs discrete energy
  12. 26. The regions of space with high probability of finding electrons
  13. 27. Stated that atoms cannot be divided
  14. 28. A one or two letter symbol that represents the element
  15. 29. Substances have infinitesimally small particles
Down
  1. 1. Horizontal rows of the periodic table.
  2. 4. Subatomic particles that does not have any charge
  3. 5. Law of Definite Proportions
  4. 6. Everything is composed of 4 kinds of matter
  5. 8. Concept of corpuscles
  6. 10. Law of multiple Proportions
  7. 13. The smallest unit of a chemical element
  8. 14. Matched metals with heavenly bodies
  9. 15. table of the chemical elements arranged in order of atomic number
  10. 16. The number of protons in its nucleus, which uniquely identifies that element.
  11. 18. Highly reactive metal group
  12. 20. The vertical columns on the periodic table.
  13. 22. First model to use idea of subatomic particles
  14. 25. Infinite number of ways of balancing matter
  15. 30. Made the preparation of several acids