Erik_sierra77

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  1. 3. A vertical column in the periodic table of elements; also known as a family of elements
  2. 5. An extremely small negatively charged subatomic particle found in a cloud outside the atomic nucleus
  3. 6. An abbreviatioin for an element or atom
  4. 7. A count of the number of protons in the atomic nucleus
  5. 9. An electrically neutral subatomic particle in the atomic nucleus
  6. 10. A horizontal row in the periodic table of elements
Down
  1. 1. The dense, positively charged center of every atom
  2. 2. A positively charged subatomic particle in the atomic nucleus
  3. 4. A chart in which all known elements are listed in order of atomic number
  4. 8. Any material that is made up of one type of atom