chemistry

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Across
  1. 2. the electrons located at the outermost shell of an atom
  2. 6. how easily a substance reacts chemically with other substances
  3. 8. a neutral subatomic particle
  4. 9. the basic unit of a chemical element
  5. 10. amount of matter in a particle or object
  6. 11. A small, positively charged particle of matter found in the atoms of all elements
Down
  1. 1. an element intermediate in properties between the typical metals and nonmetals
  2. 3. a part or aspect of something abstract
  3. 4. negatively charged subatomic particle
  4. 5. a substance characterized by high electrical and thermal conductivity as well as by malleability, ductility, and high reflectivity of light
  5. 7. a Substance which are soft and dull,non-lustrous,non-sonorous,not ductile,not malleable, and poor conductor of heat and electricity