Across
- 2. The smallest unit of a chemical element
- 5. The columns on the periodic table, move up and down
- 9. Composed of one type of atom
- 10. Element in period 6 and group 2
- 13. Element in group 7 and period 3
- 14. Two or more atoms that have been chemically combined
- 15. The eleventh element in period 5
- 17. Tells the number of atoms of each element in a chemical formula
- 20. First metalloid in period 3
- 21. Element with the atomic number 19
- 22. The last metal in period 5
Down
- 1. Changes that create a new substance
- 3. Found along the bolded staircase line on the periodic table
- 4. Found on the right side of the periodic table
- 6. Changes that only alter the form or appearance of matter
- 7. Element in group 2 and period 2
- 8. Element in period 3 and group 8
- 11. The rows on the periodic table, move side to side
- 12. Found on the left side and center section of the periodic table
- 16. The first nonmetal in period 5
- 18. Composed of two or more different types of atoms
- 19. Element in group 3 and period 2