choice board tier 4

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Across
  1. 1. The action of being moved or moving
  2. 3. Group of elements with similar chemical properties
  3. 5. Vertical row in the periodic table
  4. 6. Table has all the elements
  5. 8. An equal amount of charge or particles
  6. 12. A minute portion of matter
  7. 15. positively charged center of an atom
  8. 16. Particle located inside the nucleus of an atom that has positive charge
  9. 17. A phase that has a definite shape and volume
Down
  1. 2. A pattern of gradual change in a condition, output, or process
  2. 4. Number The number of protons in an atom's nucleus
  3. 7. Particles surrounding the nucleus of an atom that have a negative charge
  4. 9. A phase that has a definite volume but takes the shape of its container
  5. 10. Horizontal row in the periodic table
  6. 11. amount of matter in an object
  7. 13. The smallest particle of an element that still retains the properties of the element
  8. 14. Substance with atoms that are all alike
  9. 16. Amount of force exerted per unit area