Chemistry

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Across
  1. 6. The list of elements that scientists have discovered so far.
  2. 8. The combination of one carbon atom connected to two oxygen atoms.
  3. 10. Each chemical is unique, composed of a set number of protons, neutrons and __________.
  4. 13. ___________ chemistry studies the chemical compounds in inorganic, or non-living things such as minerals and metals.
  5. 14. particle of matter that uniquely defines a chemical element
Down
  1. 1. negatively charged subatomic particle
  2. 2. The main building blocks in chemistry, which are substances made of a single atom.
  3. 3. When chemical elements bond together. Example would be carbon dioxide.
  4. 4. The study of matter and the changes that matter can undergo when it is subject to different environments and conditions.
  5. 5. ___________ uses chemistry techniques to understand how biological systems work at a chemical level.
  6. 7. ___________ chemistry deals with chemical compounds that contain carbon.
  7. 8. chemical bond that involves the sharing of electrons to form electron pairs between atoms
  8. 9. formed from the electrostatic attraction between oppositely charged ions in a chemical compound
  9. 11. This element is considered essential to life.
  10. 12. Anything that has mass and takes up space