Atom and Periodic Table Crossword

Edit Answers
1234567891011121314151617
Across
  1. 2. gases / family of colorless gases that is the least reactive of the elements
  2. 4. nonmetal
  3. 5. table / ​a chart that organizes information about all elements according to their atomic number
  4. 7. / a particle with the mass of one amu
  5. 9. mass unit / amu
  6. 12. electron / determines the reactivity of an element
  7. 13. / where the electrons are located
  8. 14. / a particle not located in the nucleus
  9. 16. / a type of element that is a good conductor of electricity and heat, is malleable/ductile, and has a shiny luster
  10. 17. / ​a type of element that has some properties of a metal and some properties of
Down
  1. 1. metals / the most reactive family of metals
  2. 3. / group of elements with the same chemical/physical attributes
  3. 5. / positively charged particle
  4. 6. particles / ___________ that make up and determine the characteristics of an atom
  5. 7. / where most of an atom's mass is located
  6. 8. / ​type of element that is a poor conductor and is brittle
  7. 10. / type of model used to display the physical attributes of an atom
  8. 11. / a substance that cannot be broken down into a simpler substance
  9. 15. / the most basic unit of a chemical element that makes up everything