Across
- 2. what a column is called on the periodic table
- 8. charge of the electron
- 11. ____ electrons that are on the outside shell of an atom
- 12. part of the atom outside of the nucleus
- 13. the simplest substance made of one type of atom
- 14. unit for solid volume
- 16. density=____/volume
- 17. what a row is called on the periodic table
- 18. which part of the atom determines the element
- 19. elements on the stairstep
- 22. items with a pH from 7.1-14
- 23. items ____ dense than one will float in water
- 24. charge of the neutron
- 25. unit for mass
- 27. substance made of two or more elements that are chemically combined
- 29. elements to the left of the stairstep
Down
- 1. atoms of the same element, but with a different number of neutrons
- 3. charge of the proton
- 4. the independent variable is the item that ______
- 5. items with a pH from 0-6.9 are considered _____
- 6. constants are items that stay the ____
- 7. items to the left of the arrow in a chemical equation
- 9. unit for liquid volume
- 10. density of water (spell out number)
- 14. a rusting car is a ______ change
- 15. elements to the right of the stairstep
- 18. the fourth state of matter
- 20. atoms with a charge (either positive or negative)
- 21. mass number=protons + __________
- 26. substance made of two or more substances that are physically combined
- 28. items to the right of the arrow in a chemical equation