Across
- 2. subatomic particle with a positive electrical charge in the nucleus
- 7. substance that cannot be broken down or changed
- 8. ability to be molded or shaped without breaking
- 9. the smallest part of a chemical element
- 10. number Average atomic mass of an element
Down
- 1. does not conduct energy or heat well, is not hard or malleable
- 3. non-metal element that has some metals characteristics
- 4. central part of an atom made of protons and neutrons
- 5. substance particle with a negative electrical charge in the nucleus
- 6. can conduct energy and heat, and they are strong shiny