Science Midterm Chapters 5 and 6

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Across
  1. 1. A force that produces magnetic and electric fields
  2. 4. A force that occurs when there's some kind of change in the nucleus of an atom
  3. 5. These negatively charged particles keep things from touching because all atoms are surrounded by them and like charges repel each other
  4. 7. A neutron spontaneously converts into a proton, an electron, and a nutrino
  5. 8. Two or more atoms in a specific ratio
  6. 10. The number of protons; how elements are arranged on the periodic table
  7. 12. A push or a pull
  8. 14. A group of atoms
  9. 15. An average of all the isotopes of a particular element
  10. 17. An alpha particle is ejected from the nucleus
  11. 19. One or two letters that represent each element on the periodic table
  12. 20. Everything with mass exerts a gravitational force on everything else that has mass
  13. 21. A mixture where the different parts can be separated
Down
  1. 2. Gravitational force is created when objects with mass warp space and time around themselves
  2. 3. A mixture where the different parts cannot be separated
  3. 6. The range, strength, and direction of a force
  4. 9. A force that holds protons together in an atom's nucleus
  5. 11. Formed when atoms combine in an array
  6. 13. A force between two objects
  7. 16. Two substances mixed together with no chemical reaction
  8. 18. Another name for a homogenous mixture