Chapter 3

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Across
  1. 3. the property that lets metal be drawn into a wire shape
  2. 5. when 2 of the same atom bond they form a ___ molecule
  3. 7. the rows on the periodic table
  4. 8. has chemical properties different from all other elements
  5. 9. metals can be bent because they are ___
  6. 10. the uncharged particle in the nucleus
  7. 12. carry electric current at the right temperature
  8. 18. when a metal breaks down due to natural processes
  9. 19. the ___ on the periodic table are called groups or families
  10. 21. reacts with iron to create rust
  11. 22. negatively charged particles that float around the atom
  12. 23. thermal conductivity is the ability to transfer ___
Down
  1. 1. the center of the atom
  2. 2. These particles are the fast electrons from radioactive decay
  3. 4. an elemental ___ has extra neutrons
  4. 6. have properties of metals and nonmetals
  5. 8. the second step of the scientific method (A HEART)
  6. 11. elements in the same family have similar ___
  7. 13. The radioactive element studied by Becquerel and Curie
  8. 14. ___ reactions involve the protons and neutrons
  9. 15. the highly reactive metals of group 17
  10. 16. The most damaging form of radiation
  11. 17. the positive particle, it tells what element it is
  12. 18. During radioactive decay, the element ____
  13. 20. An element with atomic number 10 is ___ of number 9