Across
- 2. abbreviation for an element
- 5. hard, shiny, malleable, and ductile
- 6. takes in energy
- 7. a substance that forms our universe
- 8. a group of atoms bounded together
- 9. partially conduct electricity, cross between metal and nonmetal
- 10. part of an atom with a positive charge
- 12. total amount of atoms in a substance does not change
- 15. path of an electron
- 16. brittle, not malleable, not ductile, and poor conductors
- 18. outer coating made of metal, slow or fast
- 22. ten valence electrons, do not combine
- 23. releases energy
- 24. part of an atom with no charge
- 25. rows of elements
Down
- 1. part of an atom with a negative charge
- 3. invented the periodic table
- 4. an electron in the outermost orbital
- 10. what is produced by the reaction
- 11. columns of elements, same valence electrons
- 13. number of protons and electrons
- 14. number of protons are nuetrons in an atom
- 17. smallest unit of an element
- 19. cannot be separated, two or more different elements
- 20. center of atom, positive charge, includes protons and electrons
- 21. what you put in the bag