U1L2 Vocabulary check: Note any two word answers will not have a space between the words.

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Across
  1. 1. a chart organized to show elements by increasing atomic number
  2. 3. protons and neutrons are found in this part of an atom
  3. 5. the elements in the same column
  4. 7. the part of an atom with no charge
  5. 9. the simplest from of matter that cannot be changed into a simpler form by ordinary means
  6. 12. the part of an atom with a positive charge
  7. 13. anything that has mass and takes up space
  8. 15. a shortened way of representing the different atoms
  9. 16. Scientist given credit for the design of today's periodic table
  10. 17. all of the elements in the furthest right column of the periodic table
Down
  1. 2. in a neutral atom the number of this particle is the same as the number of protons
  2. 4. the part of an atom with a negative charge
  3. 6. the total mass of one atom of an element
  4. 8. The number of this particle in an atom is determined by subtracting atomic mass-atomic number
  5. 10. the model represents the elements of an atom with spherical shells surrounding the nucleus
  6. 11. number of an element on the periodic table
  7. 14. The number of this particle in an atom is equal to the atomic number