Across
- 5. substance that is naturally formed or manmade
- 6. rows of elements, starts far left of table (1-7)
- 8. outer most electron
- 11. smallest part of any chemical property
- 12. carries a neutral charge
- 15. carries a negative charge
- 16. these are on the far right of the table, not reactive to other elements ex. Helium
- 18. most elements are this
- 19. creator of the periodic table
- 20. two or more elements combined together to make one
- 22. mass of the element
- 24. this cannot be broken down smaller, smallest in the universe
- 25. center of an atom
Down
- 1. carries a positive charge
- 2. unique conducting properties, in most computers
- 3. anything can change into the three states of matter
- 4. set of protons/electrons (2,8,8,2)
- 6. substance manufactured for sale
- 7. number of protons/electrons
- 9. energy released in a form of heat
- 10. substance being changed in a chemical reaction
- 13. energy absorbed to cool down
- 14. a coating of another substance
- 17. column of elements, starts top left of table (1-18)
- 21. elements that are not metals
- 23. two or one letters telling the element name