Atoms!

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Across
  1. 2. the positive particle that is located in the nucleus of the atom.
  2. 6. in nature these types of atoms have a different atomic mass due to varying numbers of neutrons.
  3. 7. the property of metals that means they can easily be bent into shapes without breaking.
  4. 8. the vertical columns of the periodic table that are also known as families.
  5. 10. when a metal atom loses one or more electrons and becomes positively charged.
  6. 11. this atom has 6 protons, 6 electrons and 8 neutrons.
  7. 12. the smallest "uncuttable" piece of anything that is a pure substance. First termed by Democritus.
  8. 13. atomic number 6 on the periodic table that has a mass of 12.
  9. 17. metals are considered to be __ because they can be made into a wire.
  10. 19. the electrons in the outermost orbital that strive to reach eight or zero when bonding.
  11. 21. when a atom becomes charged due to a loss or gaining of electrons.
Down
  1. 1. this family is located in group 8 or 18 and does not want to bond with anyone.
  2. 3. this family has characteristics of both metals and nonmetals.
  3. 4. the scientist in the atomic theory that used his gold foil experiment to identify a positively charged center, or nucleus.
  4. 5. when the number of protons and electrons are equal in an atom.
  5. 9. this family of elements are brittle and break easily, they become anions because they gain electrons.
  6. 12. this family becomes a cation when it loses one electron, it is also located in the first group of the periodic table.
  7. 14. the ability to transfer heat and electricity, copper is a very ____.
  8. 15. a negatively charged particle that orbits around the nucleus and can be removed or added to make an ion.
  9. 16. when a gas atom gains electrons and becomes more negatively charged.
  10. 18. the rows of the periodic table that determine the number of rings and atomic radius of an atom.
  11. 20. the neutral particle in the nucleus of an atom that adds to the atomic mass but has no impact on ions.