Across
- 3. The smallest part of an element is called a ____?
- 6. The particles with negative charges the move around the nucleus of an atom
- 9. Anything that gas mass and takes up space
- 11. The particles with positive charges in the nucleus of an atom.
- 12. This type of mixture looks the same throughout.
Down
- 1. At least two elements or compounds that have been physically mixed together are a _______?
- 2. This is made up of only one type of atom.
- 4. This type of mixture looks different throughout.
- 5. The particles with a neutral charge in the nucleus of an atom
- 7. At least to elements that have been chemically mixed together are a ________?
- 8. What are the rows of elements on the periodic table called?
- 10. What are the column of elements on the periodic table called?