scientific crossword

12345678910111213
Across
  1. 3. particles -particle a body having finite mass and internal structure
  2. 4. An optical instrument used for viewing very small objects
  3. 7. Property of atoms or radicals
  4. 8. The basic unit of a chemical element.
  5. 10. Electromagnetism is one of the four fundamental interactions of nature
  6. 11. interactions that blinds protons and neutrons
  7. 13. An atomic orbital is a mathematical function
Down
  1. 1. The central and most important part of an object
  2. 2. A radionuclide is an atom with an unstable nucleus
  3. 5. Portion of matter
  4. 6. Number The number of protons in the nucleus of an atom
  5. 9. A stable subatomic particle occurring in all atomic nuclei
  6. 12. The state or quality of being stable