Chemistry Unit 2 Atoms

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Across
  1. 4. Keeps the protons and neutrons together(No space)
  2. 9. A subatomic particle with a negative charge, in the electron cloud, determines the charge of an atom
  3. 10. How much space is in an object
  4. 11. Within shells have different orbitals
  5. 12. A theory of element creation by adding and electron and proton at the same time(No space)
  6. 13. A way to measure mass(No space)
  7. 16. The number of protons in an object(No space)
  8. 17. Within a subshell, where electrons move
  9. 20. 6.02x10^23(No space)
Down
  1. 1. A subatomic particle with a positive charge, in the nucleus, determines the element of an atom
  2. 2. The smallest unit of energy and mass
  3. 3. Where electrons with certain amounts of energy generally stay(No space)
  4. 4. Where electrons are, contain subshells
  5. 5. A subatomic particle with a neutral charge, in the nucleus, determines the atom's isotope
  6. 6. The center of an atom, has the protons and neutrons
  7. 7. Positive, Negative, Neutral
  8. 8. Attraction of two atoms with opposite charges that holds the atoms together(No space)
  9. 14. How much matter something has
  10. 15. A chemist's dozen 6.02x10^23
  11. 18. The mass of an atom or subatomic particles(No space)
  12. 19. Says electrons spread out before they pair up(No space)