Atom Vocabulary 1

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Across
  1. 3. Anything that has mass and takes up space (volume).
  2. 4. A pure substance made of only one specific type of atom (e.g., pure Gold, Oxygen gas).
Down
  1. 1. A substance made of two or more different elements (NaCl = Salt )
  2. 2. The smallest basic building block of matter.
  3. 3. Two or more atoms bonded together